CBSE Class 10 Sample Paper for 2023 Boards - Maths Standard

Class 10
Solutions of Sample Papers for Class 10 Boards

## What is the speed of the plane in km/hr.

### Transcript

Question 38 (iii) What is the speed of the plane in km/hr. If Distance BC is found Speed of airplane = (π·ππ π‘ππππ π‘πππ£πππππ ππ 30 π ππππππ )/(30 π ππππππ ) = 6000/30 m/s = 200 m/s = 200 Γ (1 πππ‘ππ)/(1 π πππππ) = 200 Γ (π/ππππ ππ)/(π/ππππ πππππ) = 200 Γ 1/1000 Γ3600/1 km/hr = 720 km/hr If Distance BY is found Speed of airplane = (π·ππ π‘ππππ π‘πππ£πππππ ππ 15(β3β1) π ππππππ )/(15(β3β1) π ππππππ ) = (3000(β3 β 1))/(15(β3 β 1)) m/s = 200 m/s = 200 Γ (1 πππ‘ππ)/(1 π πππππ) = 200 Γ (π/ππππ ππ)/(π/ππππ πππππ) = 200 Γ 1/1000 Γ3600/1 km/hr = 720 km/hr