Question
The average age of a group of 70 students is 13 years.
If 3 students whose ages are 15 years, 21 years, and _____ years are replaced by 3 new students whose ages are _____ years, 19 years, and 29 years, then the new average age of the group increases by 0.35 years. The values given in which of the following options will fill the blanks in the same order to make the above statement true: I. 27, 38 II. 33, 44 III. 20, 30Solution
Since the new average increases by 0.35 years, the difference in the sum of ages of the students who left and the new students should be: 70×0.35=24.5 years Option I: (38+19+29)−(15+21+27)=23 years So, option I cannot be the answer. Option II: (44+19+29)−(15+21+33)=23 years So, option II cannot be the answer. Option III: (30+19+29)−(15+21+20)=22 years So, option III cannot be the answer.
In a certain code language, if EIGHT is written GKJLV, then how will GRADE be written in the same code language?
Three of the following four letter-clusters are alike in a certain way and one is different.
Pick the odd one out.
‘F + R’ means ‘F is the mother of R’
‘F – R’ means ‘F is the father of R’
‘F ÷ R’ means ‘F is the husband of R’...
Which figure should replace the question mark (?) if the following figure series were to be continued?
Select the figure that will come next in the following figure series.
If a mirror is placed on the shaded line, which of the following options is the correct image of the given figure?
Three of the following four word pairs are alike and thus form a group. Select the word pair that does NOT belong to that group.
Which of the following words cannot be formed from the letters of the word?
DILEMMA
This question is based on the five three-digit numbers given below.
(Left) 387 857 235 496 217
(Right) (Example: 697 – 1st digit = 6,...
What would be the symbol on the opposite side of '≠ ' if the given sheet is folded to form a cube?