Question

Rajeev age after 15 years will be 7 times his age 3years back.what is present age of Rajeev.​

Answer 1

Answer:

Step-by-step explanation:

Question:-

Rajeev age after 15 years will be 7 times his age 3 years back. What is present age of Rajeev? (Some punctuation errors).

Required Answer:-

• Let Rajeev' s age be x.
• So, according to question:-

$\bf{15+x = 7(x-3)}$

$15+x = 7x-21$

$15+21 = 7x-x$

$36 = 6x$

$\boxed{\rm{x = 6 \ years}}$

What if said to find the other age?

• We only need to place x in it.

So, $\rm{15+x \implies 15+6 = 21 \ years}$

His age 3 years back,

$\rm{6- 3 = 3 \ years}$

• Always take the present years as any constant, whenever attempting these type of questions.
• And also, go line by line when these questions occur.
• The present age would be always greater than the years.

Answer 2

Answer:

Question:-

• Rajeev age after 15 years will be 7 times his age 3 years back. What is present age of Rajeev? (Some punctuation errors).

Answer:-

• Let Rajeev' s age be (x) .

So, according to question

$\bf 15+x=7(x−3)$

$\rm15+x=7x−21$

$\rm15+21=7x−x$

$\rm6x = 36$

$\rm \: x = \frac{36}{6}$

• $\fbox{\red{{x = 6}}}$

to find

• the other age?

• We only need to place x in it.

$\rm \: So, \rm{15+x \implies 15+6 = 21 \ years}$

His age before three years

$\fbox{6 - 3 = 3 \: years}$