Practice GIKI Engineering Computing questions with answers and explanations.
Choose an option to check your answer.
Speed equals distance divided by time.
Thus, 180 ÷ 3 = 60 km/h.
Choose an option to check your answer.
The pipe fills 1/6 of the tank per hour.
In 2 hours it fills 2/6 = 1/3.
Choose an option to check your answer.
Distance equals speed multiplied by time.
Thus, 72 × 2.5 = 180 km.
Choose an option to check your answer.
Their combined rate is 1/8 + 1/12 = 5/24 tank per hour.
Time is 24/5 = 4.8 hours.
Choose an option to check your answer.
The net rate is 1/10 - 1/15 = 1/30 tank per hour.
Therefore, the tank fills in 30 hours.
Choose an option to check your answer.
The net hourly rate is 1/4 - 1/12.
This equals 2/12 = 1/6.
Choose an option to check your answer.
Each year, 90% of the previous value remains.
Thus, 50,000 × 0.9² = Rs. 40,500.
Choose an option to check your answer.
Compound growth gives 20,000 × 1.05².
The result is 22,050.
Choose an option to check your answer.
Daily work equals total work divided by the number of days.
Thus, A's one-day work is 1/12.
Choose an option to check your answer.
Their combined daily rate is 1/10 + 1/15 = 1/6.
Therefore, they complete the job in 6 days.
Choose an option to check your answer.
B's rate is 1/8 - 1/12 = 1/24.
Therefore, B alone needs 24 days.
Choose an option to check your answer.
Worker-days remain constant for the same job.
Thus, 15 × 20 ÷ 12 = 25 workers.
