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18 Feb 2020, 02:16
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B
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Difficulty:
35%
(medium)
Question Stats:
63% (01:10) correct
37%
(00:45)
wrong
based on 67
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David has 26 coins in a jar, and all the coins are dimes and nickels. How many nickels are in the jar?
(1) David spent part of the money on a soft drink.
(2) The value of the coins is $1.85.
18 Feb 2020, 02:28
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David has 26 coins in a jar, and all the coins are dimes and nickels. How many nickels are in the jar?
(1) David spent part of the money on a soft drink.
(2) The value of the coins is $1.85.
1 Dime = 10 cents = 0.1$
1 Nickel = 5 cents = 0.05$
St1) clearly NOT SUFFICIENT
St2) let the number of Dime coins = D
and number of Nickel coins = N
As per Question D+N= 26
As per St2, 0.1D+0.05N= 1.85
We have two equations and 2 variables, hence we can find the value of D & N
SUFFICIENT.
Answer B
(1) David spent part of the money on a soft drink.
(2) The value of the coins is $1.85.
1 Dime = 10 cents = 0.1$
1 Nickel = 5 cents = 0.05$
St1) clearly NOT SUFFICIENT
St2) let the number of Dime coins = D
and number of Nickel coins = N
As per Question D+N= 26
As per St2, 0.1D+0.05N= 1.85
We have two equations and 2 variables, hence we can find the value of D & N
SUFFICIENT.
Answer B
stormer07
Joined: 08 Sep 2018
Last visit: 06 Jan 2021
Posts: 7
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Location: India
Schools: ISB '21 (D)
GMAT 1: 710 Q49 V39
18 Feb 2020, 02:36
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1) - Irrelevant
2) Correct : Only one case is possible , 11 dimes & 15 nickels
so B)
2) Correct : Only one case is possible , 11 dimes & 15 nickels
so B)
