Question

The distance between Earth and Mars is $2.2253\times {10}^{8}kms$. The distance between Mars and Saturn is $1.19666\times {10}^{9}kms$. A spaceship starts from Earth and flies to Saturn via Mars. Find the total distance covered by the spaceship in metres.

• A. 1.41919 x10¹²
• B. 1.41919 × 10⁹
• C. 1.41919 × 10⁸
• D. 3.24567 × 10⁹

Answer 1

The correct option is A 1.41919 x10¹²

The total distance travelled by the spaceship between Earth and Saturn = Distance between (Earth & Mars + Mars & Saturn)
$=2.2253\times {10}^{8}kms+1.19666\times {10}^{9}kms$
$=2.2253\times {10}^{8}kms+11.9666\times {10}^{8}kms$
$=14.1919\times {10}^{8}kms$
$=1.41919\times {10}^9\times {10}^{3}m$
$=1.41919\times {10}^{12}m$