Directions(1-5): Find the missing value ‘?’ of the following series.
- 24,43,81,138,?,309
214320200288211Option A
+19*1
+19*2
+19*3
+19*4
+19*5
? = 214 - 12,10,17,47,?,909
191166183177125Option C
*1-2
*2-3
*3-4
*4-5
*5-6
? = 183 - 32,37,27,42,?,47
1518202225Option D
+5,-10,+15,-20,+25
? = 22 - 24,36,72,180,?,1890
581562555500540Option E
*1.5,*2,*2.5,*3,*3.5
? = 540 - 525,524,516,489,?,300
441425420400425Option E
-1^3,-2^3,-3^3,-4^3,-5^3
? = 425 - Sum of present ages of A and B is 41. Age of A 2 year hence is equal to age of C, 1 year ago. Age of A, 4 year hence is equal to age of B 1year ago and ratio of present age of A and D is 3 : 4. Find the difference of age of C and D.
4 years5 years1 years3 years2 yearsOption D
A + B = 41 …(i)
C -1 = A + 2 C = A + 3
And A + 4 = B – 1
⇒ B = A + 5 …(ii)
From (i) + (ii) A = 18 years
B = 18 + 5 = 23 years
C = 18 + 3 = 21 years
A/D = 3/4
D = 4/3*18 = 24 years
Required Difference = 24 – 21 = 3 years - A and B started business with Rs 600 and Rs 500 respectively. After 4 months, C replaces B with X% of B’s capital. After 1 year C’s share out of the total profit 24000 is 5600. Find the value of X.
80%90%60%50%70%Option E
(A’s profit) : (B’s profit) : (c’s profit)
=600* 12 : 500* 4 : 5x* 8
=180 : 50 : x
C’s profit = x/ (230+ x)× 24000
=>x = 70% - A can complete a work in 36 days. B is 33.33% more efficient than A. In how many days both complete the work if they work on alternate days starting with A?
15432Option A
B will complete the work alone in = 3/4 × 36
= 27 days
A == B
36 ====27
==108
3 ==== 4
Let total units of work = 108
No. of units done by A in 1 day = 3
No. of units done by B in 1 day = 4
Total work done in 2 days = 7 units
Work done in 30 days = 7 × 15 = 105 units
Remaining work will be done by A in = 1 day
= (108- 105)/ 3 = 1 Day - Ravi started a business by investing Rs.4200. After x months, Rohan joined him with a capital of Rs.5400. At the end of the year, the ratio between Ravi’s profit to Rohan’s profit is 7:3. Find the value of x.
74685Option D
[4200*12]/[5400*(12-x)] = 7/3
=>x = 8 - In bag A there are 5 red balls, X green balls and 7 yellow balls. Probability of drawing one green ball from bag A is 2/5. In bag B there are (X-3) red balls, (X-4) green balls and 6 yellow balls. 2 balls are drawn from bag B. Find the probability that both the balls are red colour?
5/113/154/192/217/17Option D
Probability of drawing one green ball = x/(12+x)
= 2/5
⇒ x = 8
Required Probability = 5C2/15C2 = 2/21
