General Aptitude
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Q. A group of friends has an average age of 25 years. If one friend leaves and the average age becomes 26, how many friends were there originally?
Q. A group of friends has an average age of 25 years. If one friend leaves the group, the average age becomes 26 years. How old was the friend who left?
Q. A group of friends has an average age of 30 years. If a new friend aged 40 joins, what will be the new average age if there were originally 5 friends?
Q. A group of friends has an average age of 30 years. If one friend leaves who is 40 years old, what will be the new average age if the group has 5 members?
Q. A helicopter is hovering at a height of 100 meters. If a person on the ground is 80 meters away from the point directly below the helicopter, what is the angle of elevation from the person to the helicopter?
Q. A hemisphere has a radius of 5 cm. What is the total surface area of the hemisphere?
Q. A horse runs 50% faster than a donkey. If the donkey runs at 12 km/h, how fast does the horse run?
Q. A is 3 times as old as B. If the sum of their ages is 48 years, how old is A?
Q. A is 3 years older than B. If the sum of their ages is 27, how old is A?
Q. A is 3 years older than B. If the sum of their ages is 27, how old is B?
Q. A is 4 years older than B. If B is 12 years old, how old is A?
Q. A is 4 years older than B. If B is 16 years old, how old is A?
Q. A is 4 years older than B. If B is 20 years old, how old is A?
Q. A is 4 years older than B. If B is x years old, what is A's age?
Q. A is 4 years older than B. If the sum of their ages is 28 years, how old is A?
Q. A is 5 years older than B. If the sum of their ages is 45 years, how old is B?
Q. A is twice as old as B. If B is 10 years old, how old is A?
Q. A jacket is marked at $150 but is sold at a 25% discount. What is the sale price of the jacket?
Q. A jacket is marked at $80 and is sold for $64. What is the percentage discount?
Q. A jacket originally priced at $80 is marked down by 25%. What is the new price?
Q. A jar contains 10 cookies, 4 of which are chocolate chip. What is the probability of selecting a chocolate chip cookie?
Q. A jar contains 10 marbles: 4 red, 3 blue, and 3 green. What is the probability of picking a green marble?
Q. A jar contains 3 white, 2 black, and 5 blue balls. What is the probability of picking a blue ball?
Q. A jar contains 3 white, 2 black, and 5 blue balls. What is the probability of selecting a blue ball?
Q. A jar contains 4 green, 5 yellow, and 6 red marbles. What is the probability of picking a yellow marble?
Q. A jar contains 5 green, 3 yellow, and 2 blue marbles. What is the probability of picking a yellow marble?
Q. A jar contains 5 green, 3 yellow, and 2 blue marbles. What is the probability of selecting a yellow marble?
Q. A jar contains 5 green, 3 yellow, and 2 red marbles. What is the probability of randomly selecting a yellow marble?
Q. A jar contains 5 green, 3 yellow, and 2 red marbles. What is the probability of picking a yellow marble?
Q. A jar contains 5 red, 3 green, and 2 blue marbles. If one marble is drawn at random, what is the probability that it is not green?