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Asked in 2021
An institution has 63 students studying Physics, Chemistry and Biology. 33 study Physics, 25 Chemistry and 26 Biology. 10 study Physics and Chemistry, 9 study Biology and Chemistry while 8 study both Physics and Biology. Equal numbers study all three subjects as those who learn none of the three. [2021]
Q. How many study all the three subjects?
A. 2
B. 3
C. 5
D. 7
Ans. B
Q. How many study only one of the three subjects? [2021]
A. 21
B. 30
C. 39
D. 42
E. None of these
Ans. C
Q. In 100 m race, Ram beats Rajesh by 25m, Rajesh beats Rohan by 4m, Ram beats Rohan by how many meters? [2021]
A. 25
B. 28
C. 30
D. 22
E. None of these
Ans. B.
Q. Find the missing number: 3, 4, 10, 33, 136, _. [2021]
A. 680
B. 685
C. 132
D. 326