Master Part A CSIR 2021 || Numerical Ability Quiz (17.12.2021)

Study the given pattern carefully and select the number that can replace the question mark (?) in it.

The students of a class donated a sum of ₹2,209. If each student donated as many rupees as the number of students in the class, then the number of students in the class is:

In a family of 3 children, what is the probability that there will be at least one girl?

In a cricket match, a batsman hits a six 8 times out of 60 balls he plays. What is the probability that on a ball played he does not hit a six?

In a circle with centre O, AD is diameter and AC is a chord. Point B is on AC such that OB = 7 cm and ∠OBA = 60°. If ∠DOC = 60°, then what is the length of BC?

The diagonal of rectangle is 15 cm and length is 12 cm. Find the area of the rectangle.

If the numerator of a fraction is increased by 60% and the denominator is increased by 40%, then the resultant fraction is 16/63. The original fraction is:

In the bar graph, in which year is the absolute difference of the students from schools A to B taken together, the maximum?

If a train runs with the speed of 36 km/h, it reaches its destination 15 minutes late. However, if its speed is 45 km/h, it is late by only 4 minutes. The correct time to cover its journey in minutes is:

From the top of a lighthouse  metres high with its base at the sea level, the angle of depression of a boat is . The distance of the boat from the foot of the light house is: