Question

Racing Jyothi and and swati are sisters their present avg is 14 year. 5 year ago swati was half as old as Jyothi and53 year ago ravina was twice as old as swati. find Ravianna present age​

Answer 1

Answer:

Ravianna is negative 31 years old

Step-by-step explanation:

Let Joti's, swati's & ravianna's ages be j, s & r respectively

Given:

j + s = 28

j - 5 = 2(s-5)

r - 53 = 2(s -53) (53 is probably a typo but that's irrelevant)

solving:

j = 28 - s

23 - s = 2s - 10

s = 11, j = 17

r - 53 = 2(11-53) = 22 - 2(53)

r = 22 - 53 = -31