Question
Amit, Bittu, and Chinky initiated a business venture
with investments in the proportions of 8:10:9, respectively. Their shares of the profit were distributed in the ratio of 6:5:9. Calculate the ratio of the time periods during which Amit, Bittu, and Chinky invested in the business, respectively.Solution
ATQ, Let, the time for which 'Amit', 'Bittu', and 'Chinky' invested in the business be 'a' months, 'b' months, and 'c' months, respectively. Let, the investment of 'Amit', 'Bittu', and 'Chinky' in the business be, Rs. '8p', Rs. '10p', and Rs. '9p', respectively. Profit share of 'Amit' to 'Bittu' to that of 'Chinky' = (8p × a) :(10p × b) :(9p × c) = 6:5:9 We can say that, (8p × a) :(10p × b) = 6:5 Or, (4/5) × (a/b) = (6/5) Or, (a/b) = (6/5) × (5/4) So, a:b = 3:2 (10p × b) :(9p × c) = 5:9 Or, (10/9) × (b/c) = (5/9) Or, (b/c) = (5/9) × (9/10) So, b:c = 1:2 Let, b = 2q a = (3/2) × b Or, a = (3/2) × 2q So, a = '3q' c = 2b Or, c = 2 × 2q So, c = '4q Ratio of time period of 'Amit' to 'Bittu' to that of 'Chinky' = 3q:2q:4q = 3:2:4
The number of terms in the sequence 20, 25, 30, ….., 160 is:
100Â Â Â Â 221Â Â Â Â 77Â Â Â Â 245Â Â Â Â 50Â Â Â 275
12, 16, 25, 41, 66, ?
If  8      x     6.5    12.25     22.125     36.0625
Then, 20% of 25% of x = ?
...98    148    185    ?     228    238
61, 48, ?, 35, 87, 22
If  7     43    x     1311    5247       15739
Then, x - x/2 + 2 = ?
...5, 11, 32, 65, ?, 389
There are 3 series, you have to find value of a, b, c and then establish relation among a,b,c.
19, 25, 45, a, 553, 2767
1560 760 360 160 6...
8 9 30 155 ? 9837 108218
...