Recent puzzles under tag mathematical

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A motorboat whose speed is 27 km/hr in still water takes 20 minutes more to go 40 km upstream than to cover............

posted Aug 4, 2022 by Prithvi

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Ratio of milk and water is 5:3. When 4.8 litres of mixture is taken out and added 800 ml milk and 600 ml water..........

posted Aug 3, 2022 by Upma

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Six lovebirds and 2 parrots were bought for Rs. 150. If 4 more lovebirds were bought for Rs. 140, than parrots..........

posted Aug 3, 2022 by Varuna Magar

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If costs of constructing a path of uniform width around a circular garden of diameter 50 meter at the rate of...........

posted Aug 2, 2022 by Ujjwal Mehra

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Can you arrange four 9\’s and use at most 2 math symbols, to make the total 100?

posted Aug 2, 2022 by Sandeep Bedi

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A bag contains 5 green, 7 red and 4 white balls. If three balls are drawn one after the other with replacement..........

posted Aug 1, 2022 by Sidharth Malhotra

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See if you can find 2 fractions whose denominators are 9 and 5 and the sum is equal to 113/45.

posted Jul 30, 2022 by Madhavi Latha

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A number consists of four different digits where last digit is two times the first digit, second digit is two times.....

posted Jul 29, 2022 by Brijesh Talwar

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Roshan's present age is 5 times his daughter's present age and five-eighth of his mother's present age. The average.....

posted Jul 28, 2022 by Samardeep Acharya

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A bus takes 1 hour 20 minutes more to travel a distance of 210 km, if its speed is reduced by 10 km/hr than actual......

posted Jul 27, 2022 by Simranjeet Singh

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Two varieties of tea having cost per kg Rs. 36 and Rs. 45 respectively are mixed in the ratio 13:8...............

posted Jul 26, 2022 by Yogeshwar Thakur

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In an examination, 85% of the candidates passed in English and 65% of the candidates passed in Mathematics..........

posted Jul 25, 2022 by Aman

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What was the average number of runs for the last 50 overs only?

posted Jul 22, 2022 by Mohammad

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A and B take part in a 500 m race. A runs at 24 km per hour. A gives B a start of 40 m and still beats him............

posted Jul 21, 2022 by Basabdatta Mukherjee

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Can you find out the remainder when 3^300 is divided by 5?

posted Jul 20, 2022 by Akriti

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In a school, a student can opt the language subject out of English, Hindi and Sanskrit either single...........

posted Jul 19, 2022 by Prithvi

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Suppose the binary operation ☆ is defined so that x ☆ y = (x + y) / (1 + xy). Simplify the expression........l

posted Jul 19, 2022 by Varun Kumar

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A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price..............

posted Jul 18, 2022 by Sandeep Otari

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The average weight of a group of boys is 48 kg. If 8 boys of average weight 51 kg leave and 3 boys.........

posted Jul 18, 2022 by Ankur Athari

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A retailer sells two items having cost prices Rs. 1200 and Rs. 1500 respectively. He offers discount of 8% on both......

posted Jul 15, 2022 by Amarvansh

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If 21x = 79x, what is the value of x?

posted Jul 14, 2022 by Chahat Sharma

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What is the value of 'k' in the following sum?

posted Jul 14, 2022 by Saif Khanam

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If, 3^(2x+y) = 243 and 2^(x+2y) = 256 then 6x+3y = ?

posted Jul 13, 2022 by Aastha Joshi

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A number of light bulbs were purchased to illuminate a house. However only 3/5 of them were needed and 72 leftover......

posted Jul 12, 2022 by Simranjeet Singh

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What is the distance between the centers of circles X and Y?

posted Jul 12, 2022 by Nikita Sehgal

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It costs Rs. 1089 to paint all the surfaces of a cube at the rate of Rs. 1.5 per meter square. If the same cube.........

posted Jul 11, 2022 by Mishthy Mukherjee

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Replace the letters of words with a number so that the below equation holds true.

posted Jul 8, 2022 by Swati Arora

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A, B, C and D are four positive numbers such that A is 2/3 times of B, B is 5/6 times of C and C is 3/5 times...........

posted Jul 8, 2022 by Dilbagh

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A dishonest shopkeeper professes to sell at a discount of 15% to his cost price but uses 400 gm instead of 500 gm.......

posted Jul 7, 2022 by Atif

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If A, B and C are positive integers and 7A = 4B = 8C, then the least possible value of A + B + C?

posted Jul 6, 2022 by Basabdatta Mukherjee

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Use 4 4's and only 4 4's along with any mathematical operators to make a total of 42.

posted Jul 6, 2022 by Balwinder

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For the equation 10x^2 + kx + 6 = 0, if roots are in the ratio 3 : 4, then find positive value of k.

posted Jul 4, 2022 by Vikram Luthra

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What number when added to itself, subtracted from itself, multiplied by itself and divided by itself, will add up.......

posted Jul 4, 2022 by Prithvi

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Imagine a twelve by twelve square. How many rectangles of any size can you construct from it?

posted Jul 4, 2022 by Varun Kumar

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Three cylinders of height of 8 cm and diameters 0.24 m, 0.28 m and 0.16 m respectively are melted to form...............

posted Jul 1, 2022 by Ankur Athari

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Nine men can finish a work in 20 days whereas 12 women can finish the same work in 18 days. If 6 men and 9 women........

posted Jun 30, 2022 by Sandeep Bedi

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A pipe can fill a tank in 8 hours. After 3/5 of the tank is filled, four more pipes of half capacity is opened.........

posted Jun 29, 2022 by Amarvansh

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I want to fill my bucket using both cold and hot water. I have two taps........How Long will it take to fill the bucket?

posted Jun 28, 2022 by Brijesh Talwar

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If 8K^6 + 15K^3 -2 = 0, then for positive value of K, find (K + 1/ K)^2 = ?

posted Jun 28, 2022 by Saif Khanam

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John was a very careless driver, so his owner Jacob gave him an offer that he will get an incentive of Rs.30............

posted Jun 27, 2022 by Aastha Joshi

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The average of some numbers is 57. If 68% of the numbers are increased by 6 and the remaining are decreased by 8........

posted Jun 27, 2022 by Aastha Joshi

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A train crosses a man running in opposite direction in 21 seconds and same train crosses a 240 meters long platform.....

posted Jun 24, 2022 by Yogeshwar Thakur

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A and B under took a work for Rs. 11500. When they worked together A got Rs 2300 less than B and A takes 7 days.........

posted Jun 23, 2022 by Aman

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On 22/06/2022, Mr. Samarth sets the clock right at 22:06 hrs. If the clock looses 6 seconds in every 22 minutes.........

posted Jun 22, 2022 by Vishal

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Three squares are constructed on the three sides of an equilateral triangle. Each......What is the radius of the circle?

posted Jun 22, 2022 by Atif

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To celebrate International Yoga day, students of Sanskriti School gathered in a ground where they are arranged.........

posted Jun 21, 2022 by Anshika Utadi

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A car has travelled 90 miles at 50 mph. It started its journey with 10 gallons of fuel but its tank has been...........

posted Jun 21, 2022 by Deepak Chitragar

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School A has boys to girls in the ratio 5:6 and school B has girls to boys in the ratio 8:7. If the number..............

posted Jun 20, 2022 by Kapil Kapoor

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The average of 14 number is 47. The average of the last five numbers is 50 and that of first six numbers is 44..........

posted Jun 17, 2022 by Vikram Luthra

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If x^2y + xy^2 =6 find dy/dx.

posted Jun 16, 2022 by Sandeep Otari