Question

answer the following questions in the photo please give answers with reasons and step-by-step need urgent.​ will mark you. brain list give correct answers

Answer 1

$\bold { \red{SOLUTION :}}$

1) A car runs 20km on 1 liter of petrol.what distance will it cover using 1/5 liters of petrol

Answer:

Using 1 liter of petrol a car runs 20 km

Hence,

Using 1/5 liters of petrol the car will run

$\implies20 \times \frac{1}{5}$

$\implies \frac{20}{5}$

$\implies 4 \: { \mathtt {km}}$

Hence,

The car will cover 4km distance using 1/5 liters of petrol

2)

A) Isha had 7/10 of a chocolate cake. She ate 3/8 of it.what part of the whole chocolate cake she had.

Answer:

Given,

Isha had 7/10 of a chocolate cake. She ate 3/8 of it that means

$\implies \frac{7}{10} \times \frac{3}{8}$

$\implies \frac{21}{80}$

Hence,

Isha ate 21/80th part of the cake

B) Ali wants to paint a rectangular board 1/2m long and 1/5 m wide how much of the board Ali want to paint.

Answer:

Ali wants to paint a rectangular board 1/2m long and 1/5 m wide

We know

Area of rectangle = length × breadth

$\implies \frac{1}{2} \times \frac{1}{5}$

$\implies \frac{1}{10} {\mathtt{m}}$

Hence,

Ali will paint 1/10 m of the rectangular board

3) Create a word problem based on multiplying fraction using 3/7 and 4/5

Answer:

It takes Julia 3/7 hour to wash, comb her hair and put on her clothes and 4/5 hour to have her breakfast. How much time does it take Julia to be ready for school?