q: Find the third proportional to 3 and 9?
Options:
(A) 10
(B) 12
(C) 27
(D) 19
(E) 20
a: Formula = Third proportional = (b b)/a
A = 3 and B = 9
(9 x 9)/ 3 = 81/3 = 27 The answer is (C).
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q: In Sam's hanger there are 23 boxes, 16 out of the boxes are filled with toys and the rest are filled with electrical appliances. 8 boxes are for sale, 6 of them are filled with toys. How many boxes with electrical appliances are in Sam's hanger that is not for sale?
Options:
(A) 1.
(B) 2.
(C) 3.
(D) 4.
(E) 5.
a: Total boxes = 23
Filled with toys = 16
Filled with appliance = 7
Total boxes for sale = 8
Toy boxes for sale = 6
Appliance boxes for sale = 2
Appliance boxes not for sale = 7 - 2 = 5 The answer is (E).
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q: Calculate the largest 4 digit number which is exactly divisible by 98?
Options:
(A) 9800
(B) 9898
(C) 9702
(D) 9604
(E) 9996
a: Largest 4 digit number is 9999
After doing 9999 98 we get remainder 3
Hence largest 4 digit number exactly divisible by 98 = 9999 - 3 = 9996 The answer is (E).
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q: A man purchases 8 pens for Rs.9 and sells 9 pens for Rs.8, how much profit or loss does he make?
Options:
(A) 15
(B) 66
(C) 88
(D) 1
(E) 12
a:
90 * 10/60 = 15 kmph The answer is (A).
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