1.A and B are two alloys of gold and copper prepared by missing metals in the ratio 7: 2 and 7: 11 respectively. If equal quantities of the alloys are melted to form a third alloy C, the ratio of gold and copper in C will be:

1.5:7

2.5:9

3.7:5

4.9:5

2.A man invested Rs 8000 for a year in the share market. At the end of the year, he gained 15% and he invested the amount with profit again for the second year. At the end of the second year, he suffered a loss of 15%. Find the gain or loss per cent in the investment after two years.

1.Profit, 3.25%

2.Loss,2.25%

3.Loss,5%

4.None of these

3.A lending library has a fixed charge for the first three days and an additional charge for each day thereafter. Sanchit paid Rs.45 for a book kept for 7 days, while Karan paid Rs.25 for the book he kept for 5 days. The fixed charge and the charge for each extra day is

1.Rs.5 and Rs.50

2.Rs.10 and Rs.5

3.Rs.15 and Rs.5

4.Rs.5 and Rs.15

4.For all integral values of n,

the largest number that exactly divides each number of the sequence

(n−1)n(n+1),n(n+1)(n+2),(n+1)(n+2)(n+3)…….is(n−1)n(n+1),n(n+1)(n+2),(n+1)(n+2)(n+3)…….is

1.12

2.6

3.3

4.2

5.Mr. Ram is on tour and he has Rs.360 for his expenses. If he exceeds his tour by 4 days he must cut down daily expenses by Rs.3. The number of days of Mr. Ram’s tour program is

1.20 days

2.24 days

3.40 days

4.42 days

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