Twenty years ago the ratio between the ages of Sita and

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Twenty years ago the ratio between the ages of Sita and Meena was 1 : 4 and at present it is 1 : 2 . What is the age of Sita at present?

1. 25
2. 35
3. 30
4. None of these

Correct Option: C

20 years ago,
Sita’s age = x years
Meena’s age = 4x years

∴	x) 20	;	1
	4x) 20		2

⇒ 2x + 40 = 4x + 20
⇒ 2x = 20 ⇒ x = 10
∴ Sita’s present age = 30 years