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The Quiz starts here
1. What must be the value of m so that the line -3x+4y-5 = 0 is perpendicular to the line 2mx-3y+4=0?
1
2
3
4
5
2. If a/(b+c) = b/(c+1) = c/(a+b) =r then r cannot take any value except
1
-1
1/2 or -1
-1/2 or -1
2
3. What is the number of solutions of the equation 8(x2 - 2) = 16(x + 1)?
1
2
3
4
5
4. A property dealer sells a house of 6,30,000 dollars and in the bargain makes a profit of 5%. Had he sold it for 5,00,000 dollars then what % of loss or gain he would have made?
15% loss
15% gain
16 2/3 % gain
16 2/3 % loss
14% loss
5. The LCM of two numbers is 28 times their GCM, the sum of the LCM and GCM is 1740. One number is 240 what is the other?
720
480
420
360
540
6. What must be added to each of the numbers 1,5,17,53, so that the resulting numbers are in proportion?
1
2
3
6
9
7. The population of town T increases by 10% in the first year, 20% in the second year due to mass exodus, it decreases by 5% in the third year. What will be its population after 3 years, if today it is 10,000?
11540
13860
12860
12540
11420
8. A car leaves New York for Philadelphia which is 180 km away. At the same time car B leaves Philadelphia for New York. If car A travels at 60 kmph and car B travels at 30 kmph , where will the 2 cars meet?
120 km away from New york
150 km from Philadelphia
Between Philadelphia and New York
120 km from Philadelphia
None of these
9. Two varieties of oil are mixed in the ratio of 4:3 to produce a certain quantity. If they are mixed in the ratio 2:3, a second quality is obtained. How many litres of the first quantity should be mixed with 10 litres of the second quality so that a third quality, having the two varieties of oil in the ratio 5:4 may be produced?
98 lit
48 lit
84 lit
72 lit
54 lit
10. In how many ways can the seven letters A,B,C,D,E,F,G be arranged so that B and C may always occupy contiguous positions?
1440
720
480
320
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