Page 154 - Start Up Mathematics_5

VALUES AND LIFE SKILLS

1. There were 180 balls in a box. On opening the box it was found that 18 balls were
broken. What percentage of balls were broken? Suggest some ways in which you can
use broken balls.
2. 19 out of 25 students opted to go for a school trip. What percentage of students did
not opt to go for the trip? How often do you go on school trips? How does it brings
a change in your daily schedule?

SCRATCH YOUR BRAIN

1. Two friends went to a restaurant. The bill was ` 350. They paid ` 385 and left the
balance as tip. What percent of the bill is the tip?
2. The price of a pair of jeans is reduced by 25% in a sale. If the original price was ` 625,
what is the new price of the jeans?

3. Fill in the blanks.

(a) 15% of 7 kg = ____________ g (b) 26% of 4 L = ____________ mL
(c) 30% of 9 m = ____________ cm (d) 19% of 6 kL = ____________ L
(e) 42% of ` 316 = ____________ p (f) 50% of 620 p = ` ____________

(g) 64% of 275 g = ____________ mg (h) 81% of 95 cm = ____________ mm
(i) 90% of 64 km = ____________ m (j) 75% of 3 kg = ____________ g

CLASS ACTIVITY

To check the understanding of percentage and equivalent fractions
Things We Need: Light coloured sheets, a pencil, a ruler and a pair of scissors

How To Do:
1. Take three light coloured sheets; say pink, light blue and light green.

2. From each sheet, cut as many small squares of size 7 cm as possible.

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