Question

5. Shobo's mother's present age is six times Shobo's present age. Shobo's age five
years from now will be one third of his mother's present age. What are their
present ages

2. There is a narrow rectangular plot, reserved for a school, in Mahuli village. The
length and breadth of the plot are in the ratio 11:4. At the rate 100 per metre it will
cost the village panchayat 75000 to fence the plot. What are the dimensions of
the plot?

7. Hasan buys two kinds of cloth materials for school uniforms, shirt material that costs him 50 per metre and trouser material that costs him 90 please fast give me a answer from 5,6,7per metre.​

please fast give me a answer from 5, 6,7​

Answer 1

5)Let the present age of Shobo be x years .

Then, Shobo's mother's age =6x years

After 5 years: Shobo's age =(x+5) years

∴(x+5)=

3

1

×(6x)

On cross multiplying, we get

3×(x+5)=6x

⇒3x+15=6x

⇒3x−6x=−15

⇒−3x=−15

⇒x=5

Therefore, present age of Shobo is 5 years and his mother is 30 years.

6)There is a narrow rectangular plot, reserved for a school, in mahuli village. the length and breadth of the plot are in the ratio 11:4.

let the common multiple be x

the length will be 11x

breadth = 4x

Perimeter = 2( L + B )

=2(11x+4x)

= 2*15x

=30x

At the rate Rs 100 per meter

30x * 100 = 3000x

3000x= 75000

3x=75

x=25

11x = 11*25 = 275m

4x=4*25 = 100 m

275m & 100m are the dimensions of the Plot

7)hasan buys two kinds of cloth material for school uniforms, shirt material that costs hom Rs 50 per metre and trouser material that costs him Rs 90 per metre. for every 3 meterts of shirt material he buys 2 meters of the trouser material . he sells the material at 12% and 10% profit respectively

MARK IT AS BRAINLEST

HOPE IT WAS HELPFUL