You are right. Its a typo.

Thanks
Pritesh

One more approach could be an extension of what navdeep mentioned.

11/30 approx. = 1/3 (since we add 3 to 30)
6/20 approx. = 1/3 (we can remove 2 from 20)

1/3*1/3 = 1/9 = 0.11

Ans = 0.11 (120)

Thanks
Pritesh

In the last section -
Any specific reason you have "divided by 4" to come to a conclusion that all numbers should be odd?


Thanks
Pritesh

(1) n = (k+1)^3 / k

Since the numerator is k+1 and denominator = k, the remainder will always be 1

A - Suff

(2) k = 5

n not defined.

Ans = A

Thanks
Pritesh

If the problem is
y(3x-5/2)=y

3x-5/2 = 1 (hope the qst. means 5/2 and NOT (3x-5)/2 )
(6x-5)/2 = 1 (equalise denominator)
x = 7/6

Thanks
Pritesh

IMO E

Ron/Stacey - why shouldnt (1) work here?

D = 400

1st 200 miles took 2.5 hrs

D1 = R1 * T1
200/2.5 = 80 = R1

D2 = R2 * T2
200/R2 = T2 or 200/T2 = R2

T1+T2 = D1+D2/R1+R2

2.5 + T2 = 400/80+(200/T2).

We find T2, So total time take is T1+T2

am thinking D is also pretty close.

coz many were below poverty line when the income increased by 20%. it should'nt add that much to the overall income.

thinking what can be the clincher between D & E...