Some students went on a field trip, at a speed of 6km/h, they travelled by bikes for 2 hours, then at a speed of 2 km/h, they walked for another hour; then they took rest for an hour and had lunch for half an hour; then at a speed of 1 m/s, they walked for an hour to visit a garden; and finally at a speed 4 km/h, they returned home in 3 hours. Their average speed, in km/h, (rounded off to two places of decimal) is:
If the side of an equilateral triangle is 16 cm, then what is its area?
81\(\sqrt{3}\) cm²
48\(\sqrt{3}\) cm²
32\(\sqrt{3}\) cm²
64\(\sqrt{3}\) cm²
Find the value of secθ - tanθ, if secθ + tanθ = √5.
5
\( 5 \tfrac{1}{5} \)
\( \frac{\sqrt{5}}{5} \)
\(\sqrt{5}\)
The production of ABC ltd is as follows.
| Product | 2021 | 2022 |
| A | 120 | 150 |
| B | 160 | 200 |
| C | 250 | 300 |
| D | 60 | 90 |
| E | 30 | 50 |
| F | 110 | 132 |
For which product did the company record the highest growth?
A person deposited ₹15,600 in a fixed deposit at 10% per annum simple interest. After every second year he adds his interest earned to the principal. The interest at the end of 4 years is:
Ram starts from point A at 8am and reaches point B at 2pm on the same day. Raju starts from point B at 8 a.m. and reaches point A at 6 p.m. on the same day. Both points A and B are separated by only a straight line track. At what time they both meet?
A is 40% more efficient than B. How much time will both, working together, take to finish the work, which B alone can finish in 36 days?
18 days
\( 9 \tfrac{1}{3} \) days
15 days
\( 11 \tfrac{2}{3} \) days