# RRB GROUP D MODEL SET V

## RRB Group D Model Set V

(1)Five years ago, the average age of P and Q was 15 year. Average age of P, Q and R today is 20 yr. How old will R be after 10 yr?

(a) 50 yr.

(b) 34 yr.

(c) 30 yr.

(d) 40 yr.

(2) The average of two numbers is M. If one number is N, then the other number is –

(a) 2 M

(b) 2 M – N

(c) 2 N

(d) M – N

(3) A dog pursues a cat and take 5 leaps for every 6 leaps of the cat., but 4 leaps of the dog are equal to 5 leaps of the cat. Compare the speeds of the dog and the cat.

(a) 8 : 24

(b) 22 : 26

(c) 16 : 22

(d) 25 : 24

(4) Ratio of boys to the girls in a class is 5 : 4. Which of the following cannot be the number of students in the class ?

(a) 98

(b) 76

(c) 86

(d) 46

(5) A motor car does a journey in 9 h, the first half at 12 km/h and the second half at 15 km/h. Find the distance.

(a) 143 km

(b) 100 km

(c) 110 km

(d) 134 km

(6) Two men A and B walk from P to Q, a distance of 22 km, at 5 and 6 km an hour respectively. B reaches Q, returns immediately and meets A at R. Find the distance from P to R.

(a) 14 km

(b) 20 km

(c) 16 km

(d) 19 km

(7) A an dB can do a piece of work in 72 days ; B and C can do it in 120 days; A and C can do it in 90 days. In what time can A alone do it ?

(a) 102 days

(b) 86 days

(c) 130 days

(d) 120 days

(8) A is twice as good a workman as B and together they finish a piece of work in 18 days. In how many days will A alone finish the work ?

(a) 27 days

(b) 23 days

(c) 32 days

(d) 35 days

(9) The simple interest on a sum of money is equal to the principle and the number of year is equal to the rate percent per annum. The rate percent is

(a) 40 %

(b) 80 %

(c) 10 %

(d) 20 %