Question

Five years ago Deepika was twice as old kanchana.five years later Deepika's age will be 5 more than kanchana age.find the present age.

Answer 1

hi

let deepika be d and kanchana be k

Five years ago Deepika was twice as old kanchana

lets form an euqation

d - 5 = 2(k - 5)

d - 5 = 2k - 10...[1]

five years later Deepika's age will be 5 more than kanchana age

d + 5 = k + 5 + 55

d + 5 = k +10

d - k = 10 - 5

d - k = 5

d = 5 + k.............[2]

now lets put [2] in [1]

since d - 5 = 2k - 10 and d = 5 + k

=> d - 5 = 2k - 10

=> 5 + k - 5 = 2k - 10

=> k = 2k - 10

=> 10 = 2k - k

=>10 = k

since d = 5 +x

=>10 +5

=>15

hecne deepika is 15 and kanchana is 10

hope it helps u

:)

Answer 2

Answer:

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