The least value of x, for which the expression x2+x+17 will not give a prime number, is
7
11
13
17
D.
17
P sells a table to Q at a profit of 10% and Q sells it to R at a profit of 12%. If R pays Rs.246.40 for it, then how much had P paid for it?
200.00
300.00
248.00
346.00
A.
200.00
A train 300 meters long is running at a speed of 25 meters per second, it will cross a bridge 200 meters long in
5 seconds
10 seconds
20 seconds
25 seconds
C.
20 seconds
A sum was divided among P, Q & R. R got double than P who got double than Q. If the difference between the shares of Q and R is Rs. 3675.00, then the sum in rupees is
4900
8575
11025
7350
B.
8575
The denominator of a fraction is greater than its numerator by 11. If 8 is added to both its numerator and denominator, then it becomes ¾. The fraction is
25/26
35/26
26/35
25/36
D.
25/36
If the volume of a sphere is divided by its surface area, we obtain 27 cm. The radius of the sphere is
9 cm.
81 cm.
27 cm.
24 cm.
B.
81 cm.
If the ratio of the areas of two squares is 25:36, then the ratio of their perimeters is
5:6
25:36
6:5
36:25
A.
5:6
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