Question
Study the given graph and answer the question that
follows. Â The number of patients aged 10 or more years but below 40 years is what per cent less than the number of patients aged 50 or more years but below 80 years?Solution
Calculation: Age of person between 10 to 40 years = 14 + 20 + 24 ⇒ Age b/w 10 - 40 = 58 Age of person between 50 to 80 years = 32 + 26 + 22 ⇒ Age b/w 50 - 80 = 80 Required Percentage = (Age b/w 50 - 80 – Age b/w 10 - 40)/Age b/w 50 - 80 × 100 ⇒ Required percentage = (80 – 58)/80 × 100 ⇒ Required percentage = 22/80 × 100 ⇒ Required percentage = 27.5% ∴ The required percentage is 27.5%.
Which of the following numbers will replace the question mark (?) in the given series?
69, 70, 74, 83, ?, 124
36, 49, 23, 62, ?, 75
31   48    67    90   ?      150
2342 2223 2090 1943 1782 ?
...14 8 6 4 7 8.5
...If 7             16      x    90       171          292
Then, 2x 2 +  1 + x ...
21, 37, 62, 98, 147, ?
12 78 385 ? 4629 9260
...9 10 6 15 -1 ?
...2, 9, 19, 32, 48, 67, ?
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