Question
The average age of a class of 18 girls is 14 years. If 2
new girls having average age of 10 years join the class, then the average age of the class becomes:Solution
Total age of 18 girls = 18 × 14 = 252 years Total age of 20 girls = 252 + (2 × 10) = 272 years Therefore new average age = 272/20 = 13.6 years
Select the number that will replace the question mark (?) in the following series.
35, 38, 43, 50, 61, 74, ?
Select the number from among the given option that can replace the question mark (?) in the following series.
11, 18, 30, 52, 94, ?
Find the missing number.
- Study the given pattern carefully and select the number that can replace the question mark [?] in it.
First row: 11, 7, 1274
Second row: 9, ... Study the given pattern carefully and select the number that can replace the question mark [?] in it.
First row: 6, 5, 191
Second row: 9, ...
Find the missing number by analysing the pattern followed by the numbers in each row.
Select the related number from the given alternatives.
29 : 65 : : 43 : ?
What will come in the place of question mark?
E/M ∶ 20/156: : G/O: ?
C/JQ : B/GT : : Z/CX : ?
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