Question
The average mark obtained by 160 candidates in a certain
examination is 55. If the average marks of passed candidates are 60 and that of the failed candidates is 20, then what is the number of candidates who passed in the examination?Solution
According to question, => 60 × x + 20 × (160 − x) = 160 × 5 => 60x + 3200 – 20x = 8800 => x = 140
Find the number which does NOT belong to the group : 101, 242, 363, 484
Select the set in which the numbers are related in the same way as are the numbers of the following set.
(4, 152, 6)
The second number in the given number pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) is/a...
What will be the resultant if the first digit of the lowest number is multiplied by the third digit of the highest number?
196 49 21
18 x 9
If ‘ x' is resultant of the first row, what is the resultant of the second row?
...Select the number that can replace the question mark (?) in the following series. 17, 21, 30, 46, 71, ?
Select the correct combination of mathematical signs that can sequentially replace '*' sign and balance the equation given below.
196 * 7 * 45 * ...
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...
A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series:-
Relevant for Exams:
