Question

Here are the Indian Records and World Records for some jumps.

Sports	World Record	Indian Record
High Jump (Men) Long Jump (Men) High Jump (Women) Long jump (Women)	Javier S. (2m 45 cm) Mike P. (8m 95 cm) Stefka K. (2m 9 cm) Galina C. (7m 52 cm)	Chandra Pal (2m 17 cm) Amrit Pal (8m 8 cm) Bobby A. (1m 91 cm) Anju G. (6m 83 cm)

Find out from the table —
How many centimetres higher should Bobby A. jump to reach 2 metres?

Remember that 1m = 100 cm
Half metre = ?

Answer 1

We know
1 m = 100 cm
Thus,
2 m = (2$\times$100) cm = 200 cm
High jump of Bobby A. = 1 m 91 cm
= 1 m + 91 cm
= 100 cm + 91 cm
= 191 cm
Now,
200 cm − 191 cm = 9 cm

$\begin{array}{ccccc}& 2& 0& 0& \mathrm{cm}\\ -& 1& 9& 1& \mathrm{cm}\\ & 0& 0& 9& \mathrm{cm}\end{array}$

Thus, Bobby A. should jump 9 centimetres higher to reach 2 metres.