Quantitative Techniques || Mixed Quiz || 14.07.2020

A man has 9 friends: 4 boys and 5 girls. In how many ways can he invite them, if there have to be exactly 3 girls in the invitees?

2 apples, 3 oranges and 4 guavas cost Rs.120 whereas 3 apples, 5 oranges and 6 guavas cost Rs.190. What is the cost (in Rs.) of 1 apple, 1 orange and 2 guava?

Which is the smallest three-digit number which when divided by 3 leaves remainder 1 and when divided by 7 leaves remainder 3?

A milk-water mixture contains 10% water. If 12 litres is withdrawn from it and 20 litres of a milk-water mixture containing 20% water is mixed then the concentration of water becomes 18%. What is the quantity of the original mixture?

A die is rolled. If the outcome is an even number, what is the probability that the number is more than 3?

How many times in a day the two hands of a clock are at an angle of 90 degrees?

In a society of 60 families, each family takes at least 2 of the three newspapers; TOI, HT or ET, 50 families take TOI, 35 families take HT and 40 families take ET. How many families take all three newspapers?

Value of “A” in the expression,  is

Which among the following is greatest : ?

A box contains 24 marbles, some are green and others are blue. If a marble is drawn at random from the jar , the probability that it is green is 2/3. The number of blue marbles in the jar?