Question

The length of a rod is 25.38 m. Find the total length of 7 such rods.

• A. 177.66 m
• B. 17.76 m
• C. 176.6 m
• D. 1766 m

Answer 1

The correct option is A 177.66 m

Length of a rod = $25.38\text{m}$
$\therefore$ Total length of 7 such rods is obtained by multiplying 25.38 m by 7.
i.e., $25.38\text{m}\times 7$

$32525.38\times \underset{–}{7}\underset{–}{177.66}$

When a decimal number is multiplied by a whole number, the resulting number will have as many decimal places as the intital decimal number.

$\therefore 25.38\text{m}\times 7=177.66\text{m}$

Therefore, the length of 7 such rods is 177.66 m.