A number is divided in the ratio 7:2. If the second part is 34, find the number.

153.

Step-by-step explanation:

If the second part is 34 units, then the 2 of the ratio is equal to 34 / 2 = 17.

That means the first part will be 7 * 17 = 119.

119 + 34 = 153.

Hope this helps!

15

step-by-step explanation:

option 1 is correct.

step-by-step explanation:

y varies inversely with x and constant of variation is 4

the equation will be:

y = k/x

where k =4 so,

y = 4/x

if we put values of x of option 1 in the above equation and find values of y

y = 4/-2 => y =-2

y = 4/-1 => y = -4

y = 4/1 => y = 4

y = 4/2 => y =2

so, all the values of x and y are correct.

if we put values of x given in other options and find value of y we cannot find whole table satisfying the equation.

hence option 1 is correct.