A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour?
7.2
3.6
10
8.4
The cost price of 20 articles is the same as the selling price of x articles. If the profit is 25%, then the value of x is:
12
15
16
18
4 men and 6 women can complete a work in 8 days, while 3 men and 7 women can complete it in 10 days. In how many days will 10 women complete it?
45
35
50
40
Derivative of x =
0
x
n
1
Derivative of sec x =
csc x cot x
-csc x cot x
sec x tan x
-sec x tan x
Derivative of cos x =
-cos x
-sin x
cos x
sin x
Derivative of tan x =
sec2 x
csc2 x
-csc2 x
-sec2 x
Find the Roman number for number: 51
IL
LX
LI
XL
Find the Roman number for number: 49
XXLI
XLIX
XILX
Find the Roman number for number: 99
XXCI
XC
XICX
XCIX