Question
The average age of 30 children and their teacher's age
are 25 years. If the teacher's age is excluded, the average reduces by 1. What is the teacher's age?Solution
Sum of the age of total children and teacher = 31 ร 25 = 775 Sum of the age of children after excluding = 30 ร 24 = 720 Teacherโs age = 775 โ 720 = 55 years
What will be the resultant if the first digit of the lowest number is multiplied by the third digit of the highest number?
Select the option that is related to the fourth number in the same way as the first number is related to the second number and the fifth number is relat...
Select the option in which the numbers are related in the same way as the numbers of the following set.
(25, 18, 225)
- This question is based on the five, three-digit numbers given below.
(Left) 847 538 628 482 497 (Right)
(Example- 847 โ First digit = 8, ... What should come next in the following number series?
5 6 7 5 5 6 6 7 7 5 5 5 6 6 6 7 7 7 5 5 5 5
Select the letter from among the given options that can replace the question mark (?) in the following series.
P, N, J, H, ?
If 2 is subtracted from the second digits of each of the numbers, how many numbers thus formed will be divisible by three?
Select the option that is related to the third number in the same way as the second number is related to the first number and the sixth number is relate...
Select the option that is related to the third term in the same way as the second term is related to the ๏ฌrst term.
17 : 361 : : 21 :______
Select the option that is related to the third number in the same way as the second number is related to the first number and the sixth number is relate...
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