Question
The average wage of a group of 30 labourers is Rs. 400.
If 4 persons receiving average wage of Rs. 320 leave the group and 2 persons receiving average wage of Rs. K join the group, then the average wage of the group increases by Rs. 45. Find the value of ‘K’.Solution
Total wage of 30 labourers in the initial group = 30 × 400 = Rs. 12000 New average wage of the group = 400 + 45 = Rs. 445 New number of labourers in the group = 30 – 4 + 2 = 28 So, according to the question, 12000 – 4 × 320 + 2K = 445 × 28 Or, 12000 – 1280 + 2K = 12460 Or, 12000 + 2K = 12460 Or, 2K = 12460 – 12000 = 1740 Or, K = (1740/2) = 870
Select the option that is related to third number-cluster in the same way first number cluster is related to second number-cluster.
94: 97 ...Select the option in which the pair of letter clusters is related in the same way as the pair of letter clusters given below.
GPU: KTYÂ
How many numbers are immediately preceded and succeeded by symbol?
6 7 @ # 2 8 8 $ 5 4 % 5 ! & # * 7 * + 9
In the following letter set, the second letter set is related to the first letter set in a certain way, find the letter set from the options which is r...
Select the number combination of letters that when placed sequentially in the blanks of the given series will complete the series.
B _ D _ _ G B ...
In the following question, select the number which can be placed at the sign of question mark (?) from the given alternatives.
Select the set in which the numbers are related in the same way as are the numbers of the given set. (NOTE : Operations should be performed on the whole...
14 : 75 : : ?
Select the option that represents the letters which, when sequentially placed from left to right in the blanks below, will complete the letter series.
Select the related number from the given alternatives:
14 : ? :: 13 : 2198
Relevant for Exams:
