Question
A man donated 10%, 16% and 28% of his income to three
NGOs ‘A’, ‘B’ and ‘C’, respectively. They spent 75%, 80% and 50% of respective sums received by them. If total sum left with three NGOs is Rs. 5910, then find the income of man.Solution
Let the income of the man be Rs. x Therefore, sum donated to NGO ‘A’ = Rs. 0.10x Sum left with NGO ‘A’ = 0.25 × 0.10x = Rs. 0.025x Sum donated to NGO ‘B’ = Rs. 0.16x Sum left with NGO ‘B’ = 0.2 × 0.16x = Rs. 0.032x Sum donated to NGO ‘C’ = Rs. 0.28x Sum left with NGO ‘C’ = 0.5 × 0.28x = Rs. 0.14x According to the question, 0.025x + 0.032x + 0.14x = 5910 Or, 0.197x = 5910 Or, x = 5910/0.197 = 30000 Therefore, income of man = Rs. 30000
The question below is based on the given series I. The series I satisfy a certain pattern, follow the same pattern in series II and answer the question...
3, 49, 191, 477, ?, 1673
What will be the next number in the series?
2,5,11,23,47,?
38    40    83    254    ?     5126
24 47 137 ? 2679 16049
...10 625 50 125 250 25 ?
...[(288)2 ÷ 96 × ?] ÷ 44 = 432
1Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â ...
3, 4, 10, 33, 136, ?, 4116
77 ? 190 257 331 412
...
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