Master Data Science Scholaership

A can do a work in 36 days while B can do the same in 48 days. If A work for ‘x’ days while B work for ‘x+2’ days then one-third of the work is complete. Find the value of x.

• 4

• 8

• 6

• 7

A, B and C gets a total wage of Rs.3600 if they work together. A and B gets a total wage of Rs. 2800 if they work together and A alone gets Rs.1600. Find the efficiency ratio of A, B and C

• 1:2:3

• 2:4:3

• 2:5:4

• 4:3:2

The ratio of two numbers is 3:8 and their difference is 115. The smaller of the two numbers is:

• 59

• 69

• 184

• 194

If the present population of a city is 55,566, which was 35000 2 years ago, then find the rate of increase of population per year.

• 26%

• 23%

• 25%

• 24%

Train Passes by a lamp post at platform in 7 sec. and passes by the platform completely in 28 sec. If the length of the platform is 390 m, then length of train (in meter) is

• 130

• 150

• 140

• 120