Aptitude - Chain Rule - Discussion
Discussion Forum : Chain Rule - General Questions (Q.No. 2)
2.
If the cost of x metres of wire is d rupees, then what is the cost of y metres of wire at the same rate?
| Rs. |  |
xy |  |
| d |
Rs. (xd)
Rs. (yd)
| Rs. | |
yd | |
| x |
Answer: Option
Explanation:
Cost of x metres = Rs. d.
| Cost of 1 metre = Rs. | |
d | |
| x |
| Cost of y metres = Rs. | |
d | . y | |
= Rs. | |
yd | . |
| x | x |
Discussion:
15 comments Page 1 of 2.
Divya said:
1 decade ago
If the cost of x meters is d. then cost of one meter will be d/x. then if we have to find the cost of y meters we have to multiply the y with cost for one meter. thus it is y*d/x.
Miyyapuram said:
1 decade ago
for x metres the cost is drupees den
x------>d
y------>?
den y*d/x=ans(cross multiply)
x------>d
y------>?
den y*d/x=ans(cross multiply)
Nikhil yamalwar said:
10 years ago
X/d = y/?
suppose ? = p, then cross multiplication.
You will get ans: x*p = yd.
P = (yd/x).
suppose ? = p, then cross multiplication.
You will get ans: x*p = yd.
P = (yd/x).
(2)
Sundaresh said:
9 years ago
x = 5 meters d = 10rupees
y = 7 then d = ?
10/5 = 2; 2 * 7 = 14.
How to get this mean d/x *y?
y = 7 then d = ?
10/5 = 2; 2 * 7 = 14.
How to get this mean d/x *y?
(2)
Anil said:
1 decade ago
x meters--->d rupees.
For 1 meter, we get d/x.
For y meters simply multiply d/x with y.
For 1 meter, we get d/x.
For y meters simply multiply d/x with y.
Rajini said:
1 decade ago
We know the cost of x rupees is d meters cost of one meter is d/x cost of y meters is d/x*y.
Parameswaran.G said:
1 decade ago
We known X and D,
Then we need Y meters of wire.
Let as,
WE GET ANSWER =(D/X)* Y.
Then we need Y meters of wire.
Let as,
WE GET ANSWER =(D/X)* Y.
Deepa said:
1 decade ago
Cost of x meters is d. Cost of 1 meters is d/x. Then cost of why meters is d*y/x.
Kharinagendra said:
1 decade ago
X meters.....d rupees.
Y meters......?
Then cross multiplication yd/x.
Y meters......?
Then cross multiplication yd/x.
(3)
Manikandan said:
1 decade ago
We know cost of x is d then y is using matrix multiplication format.
(1)
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers