Wipro
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Numerical Ability
Percentage
Raman's salary was decreased by 50% and susequently increased by 50%. He has a loss of :
a. 0%
b. 25%
c. 0.25%
d. 2.5%
Read Solution (Total 7)
-
- let his salary be 100
dec by 50%-> 50(50%of 100=50,hence 100-50 for dec)
inc by 50%-> 75(50%of 50=25,hence 50 +25=75)
over all loss of 100-75=25%
- 9 years agoHelpfull: Yes(2) No(0)
- first take salary is 100%
100-50/100*100 = 50%
50+50/100*50 = 75%
so 100-75=25%
so decrease is 25% - 9 years agoHelpfull: Yes(2) No(0)
- we can solve this question by formula A+B+(A*B)/100...NOTE:-When decreases take -ve .
so ,(-50)+50+((-50)*50)/100=-25(i.e loss of 25%)
so,25% (ANSWER) - 9 years agoHelpfull: Yes(1) No(0)
- 100 % is decreased by 50%= 50% remaining then incresed 50%= 75% ..loss of 25%
- 9 years agoHelpfull: Yes(0) No(0)
- -50
+so
------
0
0 loss and
profit - 9 years agoHelpfull: Yes(0) No(2)
- ans: 25%
we hv the formula if m% and n% increased subsequently then the total increased percent is: m+n+(mn/100). the signs are given with respect to increament or decreament i.e, if m% of increament is there &n% of decreament is there then (m-n+(m*-n/100)
Here 50-50-(50*-50/100)=-25% so the loss is 25% - 9 years agoHelpfull: Yes(0) No(0)
- You can directly use the formula= x^2/100
if there is x% profit and x% loss
=50^2/100
=50*50/100
=2500/100
=25% - 8 years agoHelpfull: Yes(0) No(0)
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