Value wrote:

1) The cost prices of 3 kinds of tea are 10$, 12$,16$ per bag. In what proportion should they be mixed so that the price of the mixture may be 14$ per bag?

1) 2:3:4

2) 1:2:3

3) 1:1:3

4) 1:1:2

5) 1:1:1

1) if price of the mixture is $14, then sum of the mixture must be 126. lets check whether the sum is 126 or not.

with the ratio of 2:3:4, the actual sum is (2x10 + 3x12 + 4x16) = 120. so not suff.

2) if price of the mixture is $14 and the tees are in the ratio of 1:2:3, then sum of the mixture must be 84. lets check whether the sum is 84 or not.

with the ratio of 1:2:3, the actual sum is (1x10 + 2x12 + 3x16) = 82. so not suff.

3) similarly the sum must be 70.

actual sum = 10x1 + 12x1 + 16x3 = 70.

bingo...

4) cannot be

5) cannot be

so C.

Value wrote:

2) A loan is discharged in three equal installments of 2662$ each. If the rate of interest is 10%, Find the amount of loan?

Please explain the procedure for both.

this more about PV concept.

assuming no advance payment, the loan amt = 2662/1.1 + 266/(1.1)^2 + 266/(1.1)^2 = 2420 + 2200 + 2000 = 6620

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Verbal: new-to-the-verbal-forum-please-read-this-first-77546.html

Math: new-to-the-math-forum-please-read-this-first-77764.html

Gmat: everything-you-need-to-prepare-for-the-gmat-revised-77983.html

GT