Question
Sonu travels 8 km towards west, then turns right and
walks for another 5 km, and then he turns 270 degree anticlockwise. Which direction is he facing now?Solution
A is the starting point. AB = 8 Km (towards west), then BC = 5 Km towards right. From point he turns 270 degree anticlockwise it means he turns left from the north and reaches the point D.
Now it is clear that he is facing east direction.
A policeman sees a thief from a distance of 68 m. The thief starts running and the policewoman chases him. The thief and the policeman run at the spee...
An LPP has constraints:
x + y ≤ 4
x + y ≥ 6
x, y ≥ 0
What can be said about the feasible region?
- A person’s salary rose by 50%. In reaction, he decided to raise his spending by 30%. If he used to save 20% of his income earlier, what is the percentage...
A trader bought two articles for ₹2,000 and ₹3,000. He sold the first article at a profit of 20% and the second article at a loss of 10%. What is th...
The second derivative of y = tan⁻¹ x at x = 1 is:
?, 241, 308, 395, 506, 645
A shopkeeper mixes two varieties of tea, one costing ₹300 per kg and the other ₹450 per kg, in the ratio 5:3. He sells the mixture at ₹400 per kg....
From the top of a tower 60 meters high, the angle of depression of two points on the ground on opposite sides of the tower are 30° and 60°. Find the d...
If 15 men can complete a work in 24 days, how many days will it take 10 men to complete the same work?
"M' sold a watch to 'N' making a profit of 20%. 'N' then sold it to 'X' at a 10% loss. If 'M' had directly sold the watch to 'X' ...