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Mary has three children. What is the probability that none o - Practice - ObjectiveMcq

Mary has three children. What is the probability that none of the three children is a boy?

Correct Answer: D — 1/8

No explanation is available for this question yet.

In the sequence of numbers

2/3, 4/7, X, 11/21, 16/31

The missing number X is:
A bag contains an equal number of one rupee, 50 paise and 25 paise coins. If the total amount in the bag is Rs. 35, how many coins of each type are there ?
The sum of a positive number and its reciprocal is twice the difference of the number and its reciprocal. The number is :
January 1, 1995 was Sunday. What day of the week lies on January 1, 1996?
The average of four consecutive even numbers is 27. The largest of these numbers is:
Monday falls on 20th March 1995. What was the day on 3rd November 1994?
Insert the missing number:

16/32, 15 /33, 17/31, 14/34, ?
The sides of a triangle are in the ratio of 1/2:1/3:1/4. If its perimeter is 52 cm, the length of the smallest side is :