## SSC CHSL Mathematics Test 13

Instructions

For the following questions answer them individually

Q 1

The compound ratio of the inverse ratios of the ratios x : yz , y : zx , z : xy is :

Q 2

If ratio of two numbers is 7 : 11 and its H.C.F. is 13. Then L.C.M is:

Q 3

What is the average number of children per house?

Q 4

Two trains 85 m and 155 m long, run at the speeds of 62 km/h and 82 km/h respectively, in opposite directions on parallel tracks. The time which they take to cross each other is:

Q 5

If $$\frac{a}{b}=\frac{7}{9},\frac{b}{c}=\frac{3}{5}$$, then the value of a:b:c is