PUZZLES
31
1 . In a Retail outlet the average revenue was Rs . 10,000 per day over a 30 day period . During this period the average daily revenue on weekends ( total 8 days ) was Rs . 20,000 per day . What was the average daily revenue on weekdays ? ( 1 ) 6364 ( 2 ) 5250 ( 3 ) 6570 ( 4 ) 8060
2 . A swimming pool can be filled by pipe A in 3 hours and by pipe B in 6 hours , each pump working on its own . At 9 am , pump A is started . At what time will the swimming pool be filled if pump B is started at 10 am ? ( 1 ) 11:20 a . m . ( 2 ) 11:05 a . m . ( 3 ) 11:10 a . m . ( 4 ) 10:50 a . m .
3 . The sum of prime numbers that are greater than 60 , but less than 70 is : ( 1 ) 128 ( 2 ) 191 ( 3 ) 197 ( 4 ) 260
4 . Find out the appropriate next number in the series from the options below : 0 , 2 , 6 , 12 , 20 , 30 , 42 ,_? ( 1 ) 56 ( 2 ) 62 ( 3 ) 49 ( 4 ) 5
5 . A bakery opened with its daily supply of 40 dozen rolls . Half of the rolls were sold by noon , and 60 % of the remaining rolls were sold between noon and closing time . How many dozen rolls were left unsold ? ( 1 ) 6 ( 2 ) 8 ( 3 ) 10 ( 4 ) I2
6 . Stuart , Jack and Leo are colleagues working in a plant . Stuart and Jack can do a work in 10 days , Jack and Leo can do the same work in 15 days while Stuart and Leo can do it in 12 days . All of them started the work together . After two days , Leo was shifted to some other work . How many days will Stuart and Jack take to finish the rest of the work ? ( 1 ) 9 ( 2 ) 12 ( 3 ) 8 ( 4 ) 7.5
7 . The missing numbers in the below series would be 1:1 , 8:4 , 9:27 , 64:16 , 25:125 , ? :?, 49:343 , ( 1 ) 36 : 316 ( 2 ) 216 : 36 ( 3 ) 316 : l6 ( 4 ) 32 : 316
8 . The difference between the value of a number increased by 25 % and the value of the original number decreased by 30 % is 22 . What is the original number ? ( 1 ) 70 ( 2 ) 65 ( 3 ) 40 ( 4 ) 90
9 . Running at the same constant rate , 6 identical machines can produce a total of 180 bottles per hour . How many bottles could 15 such machines produce in 30 minutes ? ( 1 ) 225 ( 2 ) 300 ( 3 ) 250 ( 4 ) 350
10 . A number whose fifth part increased by 4 is equal to its fourth part diminished by 10 , is : ( 1 ) 240 ( 2 ) 260 ( 3 ) 270 ( 4 ) 280
WINSPIRE : Empowering youth | January , 2017