Page 123 - ICSE Math 6

3. Find the following.
(a) 20% of 1,000 (b) 25% of ` 5,000 (c) 33% of 200 (d) 47% of 1,250 kg

4. In an examination, 20% students got grade A and 45% got grade B. If 500 students appeared in
the examination, find the number of students who did not get any of these two grades.
5. If 54% of a number is 243, then find the number.
6. Rahul scored 88% marks in his final examination out of a total of 900 marks. How many marks
did he score?

7. Sia got 275 marks out of 400 in English, 656 out of 800 in Mathematics and 765 out of 900 in
Science. Find:
(a) her percentage score in each subject
(b) her percentage score as a whole in all the three subjects
8. A student needs to score 80% or more to get grade I in an examination. How many marks must
the student score out of a total of 1,600 to get grade I?
1
9. Arjun’s height is 170 cm and Sanjay’s height is 7% more than Arjun’s height. What is Sanjay’s
height? 2

THINK SMART

1. What percentage of a whole is its one-fourth?
2. In a 2-digit number the digit at ones place is 50% of the digit at tens place. If the sum of the
digits is 12, what is the number?
3. Is it correct to say that the 50% of a number is half of the number? Why or why not?

4. A bag contains 20 red, 12 blue and 18 white marbles. What percentage of the marbles in bag is
red?
5. Amit typed 480 words, which is 60% of the words Dinesh typed and 24% of the words Jiya
typed. How many words did they type altogether?

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