Two alloys A and B contain gold and copper in the ratios of 2 : 3 and 3 : 7 by mass, respectively. Equal
masses of alloys A and B are melted to make an alloy C. The ratio of gold to copper in alloy C is
A
6 : 11
B
5 : 10
C
7 : 13
D
9 : 13
2
GATE ECE 2018
MCQ (Single Correct Answer)
+2
-0.67
Leila aspires to buy a car worth Rs. 10,00,000 after 5 years. What is the minimum amount
in Rupees that she should deposit now in a bank which offers 10% annual rate of interest, if the interest
was compounded annually?
A
5,00,000
B
6,21,000
C
6,66,667
D
7,50,000
3
GATE ECE 2017 Set 2
MCQ (Single Correct Answer)
+2
-0.67
A contour line joins locations having the same height above the mean sea level. The following is a contour
plot of a geographical region. Contour lines are shown at 25 m intervals in this plot.
Which of the following is the steepest path leaving from P?
A
P to Q
B
P to R
C
P to S
D
P to T
4
GATE ECE 2017 Set 2
MCQ (Single Correct Answer)
+2
-0.67
1200 men and 500 women can build a bridge in 2 weeks. 900 men and 250 women will take 3 weeks to
build the same bridge. How many men will be needed to build the bridge in one week?
