mantra labs Interview Questions

A square Island surrounded by bigger square, and in between there is infinite depth water. The distance between them is L. The wooden blocks of L are given.The L length block can't be placed in between to cross it, as it will fall in water (just fitting).How would you cross using these L length blocks.

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If the discount on Rs. 498 at 5% simple interest is Rs.18, when is the sum due?
A. 3 months
B. 5 months
C. 7 months
D. 9 months

183 viewsAdmin Changed status to publish January 1, 2022Aptitude Banker's discount

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Evaluate (1 ⁄ 64)^(-1⁄3)
A. 2
B. 4
C. 6
D. 8

400 viewsAdmin Changed status to publish January 6, 2022Aptitude Surds and Indices

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A certain number when divided by 39 leaves a remainder 20, what is the remainder when the same number is divided by 13?

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A building contractor employs 20 male, 15 female and 5 child workers. To a male worker he pays Rs.25 per day, to a female worker Rs.20 per day and a child worker Rs.8 per day. The average wage per day paid by the contractor is?

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A cycle is bought for Rs. 900 and sold for Rs. 1080, find the gain percent?
A. 20%
B. 10%
C. 15%
D. 25%

171 viewsAdmin Changed status to publish November 23, 2021Aptitude Profit and Loss

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In front of you are 10 bags, filled with marbles. The number of marbles in each bag differs, but all bags contain ten marbles or more. Nine of the ten bags only contain marbles of 10 grams each. One bag only contains marbles of 9 grams. In addition, you have a balance which can weigh in grams accurate, and you are allowed to use it only once (i.e. weigh a single time). How can you find out in one weighing, which bag contains the marbles of 9 grams?

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Looking back on your last position, have you done your best work?

219 viewsHR

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343 : 729 :: 125 : __

537 viewsAptitude

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The numerator of a certain fraction is 8 less than the denominator. If 3 is added to the numerator and 3 is subtracted from the denominator, the fraction becomes 3/4. Find the original fraction?

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Who invented the Bikim?(a) Louis Reard (b) Samuel Reard (c) Nina Ricci (d) Joseph Lean

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34 30 26 22 18 14 10
A. 6 3
B. 6 4
C. 6 2
D. 6 1

42 viewsAdmin Changed status to publish October 19, 2022Aptitude Number Series

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In a kilometer race, A beats B by 50 meters or 10 seconds. What time does A take to complete the race?

432 viewsAptitude

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1/8 is devided by ‘s’ , if ‘s’ is incresed by 2 times, what is the result.

212 viewsGeneral Aptitude

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In a race of 1000 meters, A can beat B by 100 meters, in a race of 800 meters, B can beat C by 100 meters. By how many meters will A beat C in a race of 600 meters?
A. 128.5 meters
B. 127.5 meters
C. 126.5 meters
D. 125.5 meters

226 viewsAdmin Changed status to publish December 31, 2021Aptitude Races and Games

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