IBM
Company
Numerical Ability
Ratio and Proportion
A shop sells 17/36 of the total amount of item A, 15/84 of the total amount of item B, and 3/504 of the total amount of item C. The shop buys back an amount equal to 2/36 of item A. What total fraction of items A, B, and C does the store currently have?
a) 303/504
b) 331/504
c) 24/84
d) 329/504
e) 15/36
Read Solution (Total 11)
-
- 17 items were sold out of 36 in A,similarly 15 out of 84,3 out of 504,but 2 are returned back in A,so now we have (15/36)+(15/84)+(3/504) by doing this we get (210+90+3)/504=303/504.
- 9 years agoHelpfull: Yes(40) No(46)
- Correct answer is:
(19/36 + 69/84 + 501/504 + 2/36) / 3 = 403/504 ..... So, none of the answers are correct. Looks like a duffer has created the questions. Questions asks "store currently have" not "store has sold".
So answer is 403/504 which is the correct answer and does not match any options. Also, the question is correct because I have "SCREEN SHOT" of the question asked and none of the option is 403/504 ..... What a level of seriousness they have ..... total FLOP! - 8 years agoHelpfull: Yes(16) No(5)
- All of your solutions are attempting to calculate the amount sold not the amount of stock left
- 9 years agoHelpfull: Yes(10) No(2)
- i think it is wrong answer
- 9 years agoHelpfull: Yes(6) No(6)
- 17-2=15
15/36+15/84+3/504=303/504 - 9 years agoHelpfull: Yes(6) No(2)
- Here 2/36 is returned from A..and so we have (15/36)+(15/84)+(3/504)=(210+90+3)/504
this gives 303/504..
A is correct answer - 8 years agoHelpfull: Yes(1) No(9)
- A item sold=17/36
A item remain=1-17/36=19/36
A item buy back=2/36
total of A item=19/36+2/36=21/36
the item B sold=15/84
item remain=1-15/84=(84-15)/84=69/84
item C sold=3/504
item C remain=1-3/504=(504-3)/504=501/504
fractions A,B,C =21/36 + 69/84 + 501/504 = (521/504) is it? - 7 years agoHelpfull: Yes(1) No(2)
- A shop sells 17/36 of total amount of A
B shop sells 15/84 of total amount of B
C shop sells 3/504 of total amount of C
the total fraction of items ABC is=A+B+C=17/36+15/84+3/504
ANS:331/504 - 9 years agoHelpfull: Yes(0) No(32)
- C is the correct ans
- 9 years agoHelpfull: Yes(0) No(4)
- which ans is correct...??
- 9 years agoHelpfull: Yes(0) No(5)
- 17 items were sold out of 36 in A,similarly 15 out of 84,3 out of 504,but 2
(15/36)+(15/84)+(3/504) by doing this we get (210+90+3)/504=303/504. - 5 years agoHelpfull: Yes(0) No(0)
IBM Other Question
The number of calls coming into a call center on Tuesday are 5/11 more than 1/4 the number that came in on Monday. The total number of calls for the two days together was 270. How many calls came in on Tuesday?
a) 50
b) 61
c) 20
d) 72
e) 18
1)5,5,7,7,9,11,11,13,13,17,15,19,17,?
2)2,1/3,2/3,6,7,1/2,7/2,14,20,1/5,4,?
3)2/3, 5/3,19/6,31/6,23/3,32/3,65/6,?
4)4,11,66,74,370,379,?
5)4,2,36,4,5,1,36,16,6,3,81,?
6)5,10,25,15,30,75,150,80,155,400,?
7)3,8,12,48,29,?
8)5,16,22,68,28,87,34,106,11,?
9)2,1,2,3,8,0,1,9,1,2,?
10)2,6,5,14,11,26,17,?
11)3/2,9/4,9/4,7/2,49/4,49/4,4/3,16/9,16/9,8/3,?
12)8,0.5,16,4,15,0.3,50,4.5,6,0.2,30,?
13)7,0,1,8,5,12,9,26,3,23,2,?
14)33,8,41,46,21,67,72,47,119,124,?
15)30.5,31,30,0,67.2,67,70,100,183.9,?
16)4,6,2,12,18,14,?
17)3.2,4.2,4.7,2.7,6.2,1.2,7.7,-0.3,9.2,-1.8,?
18)10,12,-36,-7,-5,15,19,21,?
Ans::
1)ans=23
there are 4 different series 1st:5,9,13,17… and 2nd:5,11,17,?
3rd:7,11,15… and 4th:7,13,19…
Obs: gap of 4 in 1st and 3rd ,where as gap of 6 in 2nd and 4th
2) 2,1/3,2/3,6,7,1/2,7/2,14,20,1/5,4,?
ans=4
(2,1/3,2/3,6)……2*1/3=2/3 and 2*3=6
(7,1/2,7/2,14)…..7*1/2=7/2 and 7*2=14
(20,1/5,4,?)……20*1/5=4/1 and 4*1=4
3)
4) 4,11,66,74,370,379,?......ans=1516
4+7=11 and 11*6=66
66+8=74 and 74*5=370
370+9=379 and 379*4=1516
5) 4,2,36,4,5,1,36,16,6,3,81,?....ans=9
(4,2,36,4),……(4+2)^2=36 and (4-2)^2=4
(5,1,36,16),….(5+1)^2=36 and (5-1)^2=16
6,3,81,?..........therefore (6-3)^2=9