Question

Tithi is 3 years older then Richa. Six years ago Tithi age was four times of Richa age. Find their present ages.

Answer 1

Answer:

Tithi = 10 yr old

Richa = 7 yr old

Step-by-step explanation:

Let the present ages of:

• Tithi = x
• Richa = y

According to question, at present

• x = y + 3
• x - y = 3 .....(1)

6 years ago,

• (x - 6) = 4(y - 6)
• x - 6 = 4y - 24
• x - 4y = -18 ......(2)

Subtract equation (1) from equation (2)

• x - 4y - x - (-y) = -18 - 3
• -4y + y = -21
• -3y = -21
• y = 7 yrs

If y = 7 yrs then from equation (1)

• x = y + 3
• x = 7 + 3
• x = 10 yrs

Answer 2

Answer:

Tirth age =10 years

Richa age =7 years