Quantitative-aptitude Questions Set 131:
What is the unit digit in 2^30?
What is the unit digit in 2^30?
Solution:
331, 482, 551, 263, 383, 362, 284
Solution:
What is the remainder when the sum of the first 30 natural numbers is divided by 9?
Solution:
The sum of a rational number and its reciprocal is 11/4. Find the number.
Solution:
In a triangle PQR, PQ = QR = 10 cm, PR = 12 cm. QS is drawn perpendicular to PR where S is on the line PR. Find the length of QS.
Solution:
From a standard deck of 52 playing cards, two cards are drawn successively with replacement. Find the probability that both the cards are queens.
Solution:
A train of length 150 m is moving with a speed of 70 km/h. How long will it take the train to pass a person running at 10 km/h in the same direction as the train?
Solution:
5 clocks ring automatically at intervals of 12 minutes, 8 minutes, 3 minutes, 4 minutes and 10 minutes, respectively. In 8 hours from the moment they start, how many times will they ring together?
Solution:
A watch which gains time uniformly is 4 minutes slow at 8 o'clock in the morning on Sunday, and it is 5 minutes 48 seconds fast at 8 p.m. on the following Sunday. On which day was the watch correct?
Solution:
When payment is made online, the discount offered is 10%. Additional discount of 5% is given to SBI credit card holders. Pratik buys a phone of Rs. 15000 by paying online and pays through his SBI credit card. How much does he need to pay?
Solution:
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