Chapter 2: Long and Short

Answer: We know that,

1 m = 100 cm

Given

Men’s world record for high jump = 2 m 45 cm

= 2 × 100 + 45 cm

= 200 cm + 45 cm

= 245 cm

High jump record of Chandra Pal = 2 m 17 cm

= 2 × 100 + 17 cm

= 200 cm + 17 cm

= 217 cm

Now, subtract 217 from 245, we get

245 – 217 = 28 cm

Hence, to equal the men’s world record for high jump, Chandra Pal needs to jump 28 cm more.

Answer: Bobby A, high jump record = 1 m 91 cm

= 1 × 100 + 91 cm

= 191 cm

Required centimetres to reach is 2m

So,

= 2 × 100

= 200 cm

Thus,

200 – 191 = 9 cm

Therefore, Bobby A should jump 9 cm higher to reach 2 metres

Answer: Galina’s long jump record is 7 m 52 cm

Hence, it is nearly 7 and half metres,

Therefore option (b) is correct

Answer: Women’s World record for high jump = 2 m 9 cm

Women’s World record for long jump = 7 m 52 cm

So, difference between them is

= 7 m 52 cm – 2 m 9 cm

= 5 m 43 cm

Answer: Mike P long jump record = 8 m 95 cm

To reach 9 metres = 9 m – 8 m 95 cm

= 5 cm

Therefore, if Mike P jump 5 cm longer, his jump would be full 9 metres

Answer: Javier S high jump is 2 m 45 cm. So, his jump is very close to two and half metres.