
Solution
25 + 45 + 35 + 30 = 135
^{135}⁄_{5} = 27
60 + 20 + 40 + 30 = 150
^{150}⁄_{5} = 30
25 + 40 + 35 + 65 = 165
^{165}⁄_{5} = 33
Ram and Gopal have money in the ratio 7 : 17 and Gopal and Krishna also have money in the same ratio 7 : 17. If Ram has Rs. 490, Krishna has

Solution
Ram: Gopal = 7: 17
Gopal : Krishna = 7 : 17
So Ram : Gopal : Krishna
=7×7: 17×7: 17× 17
= 49: 119: 289 = Money of
Krishna = Ram's money×\(\frac{Krishna Ratio}{Ram Ratio}\)
=490×\(\frac{289}{49}\)= ₹ 2890 /
Which one of the following has the highest value of specific heat?

Solution
Water
The cells which are responsible for the production of antibodies are

Solution
Lymphocytes produce the antibodies as an immume response to antigen.
Which cells in our body have the least regenerative power?

Solution
Brain cells of our body have the least regenerative power, once they are dead, they are rarely regenerated. However,the functioning of such cells may be done by newly cells in some clrcumtances.
Mariana Trench is found in

Solution
Pacific Ocean
If’+’ means ‘x’, ‘‘ means ‘+’, ‘x’ means ‘‘, ‘+’means ‘+’,then what will be the value of the following?
20+4×65÷7

Solution
? = 20 + 4 × 6  5 ÷ 7
⇒ ? = 20 ÷ 4  6 + 5 × 7
⇒ ? = 5  6 + 35 = 34
Some equations are solved on the basis of a certain system. On the same basis, find out the correct answer from amongst the four alternatives for the unsolved equation:
72 × 96 = 6927
58 × 87 = 7885
79 × 86 = ?

Solution
If BOMBAY is coded as FSQFEC which word could be coded as QCWSVI ?

Solution
If a circle and a semicircle have the same radius of 14 cm, then the ratio of their perimeters is[use π = ^{22}⁄_{7}]

Solution
Circumference of circle
=2 ×^{22}⁄_{7}×14
=88cm
Circumference of semlclrlce
= π + diameter
\(=\left ( \frac{22}{7}\times 14+28 \right )cm\)
= 72cm
∴ Required ratio
=88:72=11:9