Question

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

• A. 1.41919x1012 m
• B. 14191900000
• C. 1419190000000
• D. 1.41919x${10}^9$ km

Answer 1

Answer: (A), (C), (D)

The correct options are
A 1.41919x1012 m
C 1419190000000
D 1.41919x${10}^9$ km

The total distance travelled by the spaceship between Earth and Saturn = Distance between (Earth & Mars + Mars & Saturn)
2.2253x${10}^8$ kms + 1.19666 x ${10}^{9}kms$
= 2.2253x${10}^8$ kms + 11.9666 x ${10}^{8}kms$
=14.1919 x${10}^8$ kms
= 1.41919x${10}^9$$\times {10}^{3}m$
= 1.41919x ${10}^{12}m=1419190000000m$