Question
45% of ‘r’ added to 55% of ‘s’ gives 180. If
‘s’ is 60 more than ‘r’, find the value of (2r – s)Solution
According to the question, 0.45r + 0.55s = 180…….. (1) And, s – r = 60……. (2) On solving equation (1) and (2), we get r = 120 and s = 180 Therefore, (2r – s) = 240 – 180 = 60
Find the wrong number in the series given below.
7, 22, 68, 217, 625, 1880
Select the number from among the given options that is wrong in the following series.
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Find the wrong number in the given series.
60, 65, 75, 95, 125, 195, 355
Arrange the following words in a logical and meaningful order.
1. Monkey
2. Elephant
3. Rat
4. Fly
5. Lion
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17, 17, 51, 255, 1789, 16065
A series is given with two wrong terms. Select the wrong term in the given series.
32, 43, 58, 73, 92, 117, 144
A series is given with one wrong term. Select the correct alternative from the given ones that will complete the series.
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Select the wrong term in the series.
44, 47, 41, 50, 38, 53, 40
5, 15, 30, 135, 405, 1215, 3645
Find the wrong number in the series given below.
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