Evaluate the following: 3 4 of 2 dozens .

Given, 3 4 of 2 dozens We know that, In mathematics, ' of ' is also considered as one of the arithmetic operations which means multiplication within the brackets. For example, we need to find one-third of 60 . Mathematically, we re-write it as 1 3 of 60 = 1 3 × 60 = 20 Since, 1 dozen = 12 and 2 dozen = 24 So, 3 4 of 2 dozens ⇒ 3 4 × 24 ⇒ 3 × 6 ⇒ 18 or 1 1 2 dozen Therefore, the answer is 1 1 2 dozen .

A group of students went for a picnic and carried a container full of 25 litres of water. During the picnic, 9 10 of water was consumed. What amount of water was left at the end of the picnic?

From the given, Water in a container = 25 litres Consumed water = 9 10 of 25 litres Remaining water = ? We know that, In mathematics, ' of ' is also considered as one of the arithmetic operations which means multiplication within the brackets. So, 9 10 of 25 litres ⇒ 9 10 × 25 litres ⇒ 9 10 2 × 25 5 litres ⇒ 45 2 litres ⇒ 22 1 2 litres Hence, 22 1 2 litres amount of water was left at the end of the picnic.

A road crew can pave 2 5 km of the road in 1 1 2 hours . How many kilometres of the road can they pave in 10 hours ?

From the given, Length of the road = 2 5 km Time to pave = 1 1 2 = 3 2 hours Here, first we need to find the road distance that can be paved in 1 hour . ⇒ 2 5 ÷ 3 2 ⇒ 2 5 × 2 3 = 4 15 km / hr The number of kilometers the road can they pave in 10 hours = 4 15 × 10 ⇒ 8 3 = 2 2 3 km Hence, 2 2 3 km of of the road can they pave in 10 hours .

E M B I B E

CPA Maths - A Singapore Approach>Chapter 2 - Fractions>REVIEW EXERCISE

Vistor Chow wal keung | RC Yadav Solutions for Chapter: Fractions, Exercise 4: REVIEW EXERCISE

Author:Vistor Chow wal keung | RC Yadav

Vistor Chow wal keung | RC Yadav Mathematics Solutions for Exercise - Vistor Chow wal keung | RC Yadav Solutions for Chapter: Fractions, Exercise 4: REVIEW EXERCISE

Attempt the free practice questions on Chapter 2: Fractions, Exercise 4: REVIEW EXERCISE with hints and solutions to strengthen your understanding. CPA Maths - A Singapore Approach solutions are prepared by Experienced Embibe Experts.

Questions from Vistor Chow wal keung | RC Yadav Solutions for Chapter: Fractions, Exercise 4: REVIEW EXERCISE with Hints & Solutions

EASY

7th CBSE

IMPORTANT

CPA Maths - A Singapore Approach>Chapter 2 - Fractions>REVIEW EXERCISE>Q 6

Find the value of the following:

$5 \frac{1}{4} \div 9 \frac{1}{8}$

EASY

7th CBSE

IMPORTANT

CPA Maths - A Singapore Approach>Chapter 2 - Fractions>REVIEW EXERCISE>Q 7

Evaluate the following:

$\frac{1}{5} of ₹ 105$ .

EASY

7th CBSE

IMPORTANT

CPA Maths - A Singapore Approach>Chapter 2 - Fractions>REVIEW EXERCISE>Q 7

Evaluate the following:

$\frac{2}{3} of 21 kg$ .

EASY

7th CBSE

IMPORTANT

CPA Maths - A Singapore Approach>Chapter 2 - Fractions>REVIEW EXERCISE>Q 7

Evaluate the following:

$\frac{3}{10} of 210 km$ .

EASY

7th CBSE

IMPORTANT

CPA Maths - A Singapore Approach>Chapter 2 - Fractions>REVIEW EXERCISE>Q 7

Evaluate the following:

$\frac{3}{4} of 2 dozens$ .

EASY

7th CBSE

IMPORTANT

CPA Maths - A Singapore Approach>Chapter 2 - Fractions>REVIEW EXERCISE>Q 8

The product of $1 \frac{3}{8}$ and another number is $15 \frac{1}{8}$ . Find the other number.

EASY

7th CBSE

IMPORTANT

CPA Maths - A Singapore Approach>Chapter 2 - Fractions>REVIEW EXERCISE>Q 9

A group of students went for a picnic and carried a container full of $25 litres$ of water. During the picnic, $\frac{9}{10}$ of water was consumed. What amount of water was left at the end of the picnic?

MEDIUM

7th CBSE

IMPORTANT

CPA Maths - A Singapore Approach>Chapter 2 - Fractions>REVIEW EXERCISE>Q 10

A road crew can pave $\frac{2}{5} km$ of the road in $1 \frac{1}{2} hours$ . How many $kilometres$ of the road can they pave in $10 hours$ ?