Question
‘M’ and ‘N’ started a business by investing Rs.
‘x’ and Rs. ‘x – 500’ respectively. If the total annual profit is Rs. 60,000 and ‘M’ received Rs. 36,000, then find the initial investment made by ‘N’.Solution
ATQ, Ratio of profit share of ‘M’ and ‘N’ respectively = {(x × 12):(x – 500) × 12} = (12x):(12x – 6000) ATQ; {12x/(24x – 6000)} = (36000/60000) Or, 12x/(24x – 6000) = 3/5 Cross-multiplying: 5 × 12x = 3 × (24x – 6000) 60x = 72x – 18000 18000 = 12x x = 1500 Initial investment made by ‘N’ = 1500 – 500 = Rs. 1000
16, 27, 44, 63, 98, 139
210, 140, 105, 84, 70, 63, 52.5Â
0 7 26 63 126 215
...32, 46, 88, 158, 256, 380
Find the wrong number in the given number series.
32, 48, 84, 146, 248, 392
100, 75, 59, 55, 46, 45
21Â Â Â Â Â Â Â Â Â Â 32Â Â Â Â Â Â Â Â Â Â 54Â Â Â Â Â Â Â Â Â Â 86Â Â Â Â Â Â Â Â Â Â 131Â Â Â Â Â Â Â Â 186
...131, 212, 261, 286, 295, 299
Find the wrong number in the given number series.
3, 7, 22, 89, 445, 26771, 2, 8, 48, 386, 3840
