Question

Walt grew 10 centimeters in 1 year.he is now 1.6 m tall.how tall was he 1 year ago?

Answer 1

He is 1.6 m now
1.6 m = 160 cm
He grew 10 cm every year, so before one year he is
(160 - 10) cm = 150 cm.

Answer 2

Given,

Walt grew 10 cm in 1 year.

He is now 1.6 m tall.

To find,

His height before 1 year.

Solution,

Walt's height before 1 year would be 1.5 metres.

We can easily solve this problem by following the given steps.

According to the question,

Walt grew 10 cm in 1 year.

His present height = 1.6 m

His present height = (1.6 × 100) cm [ We have converted the units from metres to centimetres.]

His present height = 160 cm

His height before 1 year = His present height - the growth in his height in a one year

His height before 1 year = (160-10) cm

His height before 1 year = 150 cm

Now, converting the units from metres to centimetres,

1 m = 100 cm

1 cm = 1/100 m

Therefore, 150 cm = 150/100 m

150 cm = 1.5 m

Hence, Walt's height before 1 year was 1.5 metres.