ProtoTech Solutions Interview Questions

Sec²θ-tan²θ =
A. 0
B. -0
C. 1
D. -1

519 viewsAdmin Changed status to publish December 31, 2021Aptitude Trigonometry

0 Votes 0 Ans

Two pipes X and Y can separately fill a cistern in 18 and 24 hours respectively. If they are turned on alternately for one hour each, how long will it take to fill the cistern?

209 viewsAptitude

0 Votes 0 Ans

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

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

0 Votes 0 Ans

Who became the ninth Indian to claim 150 or more wickets ?

178 viewsAptitude

0 Votes 0 Ans

A 5 litre jug contains 4 litres of a salt water solution that is 15 percent salt. If 1.5 litres of the solution spills out of the jug, and the jug is then filled to capacity with water, approximately what percent of the resulting solution in the jug is salt?
A. 7.5%
B. 9.5%
C. 10.5%
D. none

230 viewsGeneral Aptitude

0 Votes 0 Ans

The radius of a circle is increased by 1%. Find how much % does its area increases?

250 viewsAptitude

0 Votes 0 Ans

You have a bag of with ‘N’ number of strings. At random, you pull out a string’s end.You pull out another string end and you tie the two together.You repeat this until there are no loose ends left to pull out of the bag.What is the expected number of loops?

498 viewsAptitude

0 Votes 0 Ans

The sum of three consecutive integers is 102. Find the lowest of the three?

453 viewsAptitude

0 Votes 0 Ans

If f(x , y) = x² + y², then ∇² f is
A. 2
B. 4
C. 6
D. 8

428 viewsAdmin Changed status to publish December 30, 2021Aptitude Calculus

0 Votes 0 Ans

What is the next number in the series 4, 9, 25, 49,……

236 viewsAptitude

0 Votes 0 Ans

Speed of a boat in standing water is 10 kmph and the speed of the stream is 2 kmph. A man rows to a place at a distance of 120 km and comes back to the starting point. The total time taken by him is:
A. 10
B. 20
C. 30
D. 40

194 viewsAdmin Changed status to publish January 3, 2022Aptitude Boats and Streams

0 Votes 0 Ans

A man standing on a 48.5 meter building high, has an eyesight height of 1.5m from the top of the building, took a depression reading from the top of another building and wall, which are 50° & 80°
A. 42.55
B. 39.49
C. 36.50
D. 35.50

186 viewsAdmin Changed status to publish January 1, 2022Aptitude Trigonometry

0 Votes 0 Ans

Suraj was thrice as old as karan 6 year before. Suraj will be 5/3 times as old as karan 6 year hence. What should be the age of karan at the present time?
A. 12 years
B. 10 years
C. 8 years
D. 6 years

215 viewsAdmin Changed status to publish December 29, 2021Aptitude Problems on Ages

0 Votes 0 Ans

A man while going dowm in a escalator(which is miving down) takes 50 steps to reach down and while going up takes 125 steps. If he goes 5 times faster upwards than downwards. What will be the total no of steps if the escalator werent moving.

225 viewsGeneral Aptitude

0 Votes 0 Ans

How long does a train 165 meters long running at the rate of 54 kmph take to cross a bridge 660 meters in length?

283 viewsAptitude

0 Votes 0 Ans