7922.Sum of squares of three positive numbers is 608 and they are in the ratio 2 : 3 : 5. Then, find the numbers
6, 9, 15
8, 12, 20
10, 15, 25
14, 21, 35
7924.If 30% of A = 0.25 of B = 1/5 of C, then find the ratio A. B: C
15:12:10
12:15:10
10:12:15
10:15:12
7928.In a cylinder, if radius is doubled and height is halved, then what happens to the curved surface area?
Halved
Doubled
Does not change
Four times
7930.The length of side of a rhombus is 5 m and one of its diagonal is 8 m. Then what is the length of other diagonal?
5 m
7 m
6 m
8 m
7932.A, B and C can complete a piece of work in 24, 6 and 12 days respectively. If they work together, in how many days they will complete the same work?
1/24 day
7/24 day
24/7 days
24/11 days
7934.12 men complete the 2400 sq.m ploughing work in 10 days. How many men are required to complete 3600 sq. m ploughing work in 18 days?
10 men
15 men
18 men
20 men
7936.2 men and 7 boys can do a piece of work in 14 days, 3 men and 8 boys can do the same in 11 days. In how many days, 3 times the work can be completed by 8 men and 6 boys?
21 days
18 days
24 days
36 days
7938.The length, breadth and height of a hall are 8 m, 10 m, 4 m respectively and the hall has one door of area 3 m x 1.5 m. Find the cost of painting the walls at the rate of Rs. 200 per square metre.
Rs.28,800
Rs. 59,900
Rs. 27,900
Rs. 60,800
7940.If the capacity of a cylindrical tank is 1848 $ m^{3} $ and the diameter of its base is 14 m, then find the depth of the tank?
12 m
14 m
15 m
18 m
7942.The length of a chain used as the boundary of a semicircular park is 72 m. What is the area
of the park?
of the park?
77 $ m^{2} $
91 $ m^{2} $
126 $ m^{2} $
308 $ m^{2} $
7944.Find the least number which when divided by 5, 6, 7 and 8 leaving a remainder 3, but when divided by 9 leaves no remainder.
1677
1683
2523
3363
7946.Find the next number in the following series
4,6,9,$ 13\dfrac{1}{2} $
4,6,9,$ 13\dfrac{1}{2} $
$ 20\dfrac{1}{4} $
$ 22\dfrac{3}{4} $
19
$ 17\dfrac{1}{2} $
7948.Consider the following statements :
Assertion (A): Scholars distinguished a culture midway between Palaeolithic and Neolithic called Mesolithic.
Reason (R) : The chief characteristics mesolithic were the stone implements used were extremely small and made up of Chalcedony and silicate instead of quartzite.
Select your answer according to the coding scheme below:
Assertion (A): Scholars distinguished a culture midway between Palaeolithic and Neolithic called Mesolithic.
Reason (R) : The chief characteristics mesolithic were the stone implements used were extremely small and made up of Chalcedony and silicate instead of quartzite.
Select your answer according to the coding scheme below:
Both (A) and (R) are false
Both (A) and (R) are true but (R) is not the explanation for (A)
Both (A) and (R) are true and (R) is the correct explanation for (A)
(A) is true but (R) is false
7950.Match the following:
(a) Na and K - Obtained by electrolysis of fused salt
(b) Cu and Ag - Occur only in native state
(c) Au and Pt - Occur both native and combined state
(d) Na and Ca - Reducing agent in metallurgy
(e) Al and Mg - Occur only in combined state
(a) Na and K - Obtained by electrolysis of fused salt
(b) Cu and Ag - Occur only in native state
(c) Au and Pt - Occur both native and combined state
(d) Na and Ca - Reducing agent in metallurgy
(e) Al and Mg - Occur only in combined state
(a) — (v) (b) — (iii) (c) - (ii) (d) — (i) (e) — (iv)
(a) — (iv) (b) — (i) (c) - (ii) (d) — (iii) (e) — (v)
(a) — (ii) (b) — (iii) (c) - (v) (d) — (iv) (e) — (i)
(a) — (iii) (b) — (ii) (c) - (i) (d) — (v) (e) — (iv)
7952.Which of the following islare wrong?
I. $Mg_{2}C_{3}$ on hydrolysis gives acetylene
II. $Be_{2}C$ on hydrolysis gives methane
III. $Al_{4}C_{3}$ on hydrolysis gives allylene
I. $Mg_{2}C_{3}$ on hydrolysis gives acetylene
II. $Be_{2}C$ on hydrolysis gives methane
III. $Al_{4}C_{3}$ on hydrolysis gives allylene
I and II
II and III
I and III
I, II and III
7954.For the Daniel cell $ E^{0} $= 1.10 V. The value of equilibrium constant (K) for the reaction (at 298 K ) is
$Zn_{s} + Cu_(aq)^{2+}—> Zn_(aq)^{2+} + Cu_{s}$
$Zn_{s} + Cu_(aq)^{2+}—> Zn_(aq)^{2+} + Cu_{s}$
4.36 x $10^{39} $
2.79 x $10^{41} $
6.53 x $10^{35} $
1.55 x $10^{37} $
7956.Agricultural unemployment may be classified into .
I. seasonal unemployment
II. Disguised unemployment
III. Chronic unemployment
Which is the correct answer?
I. seasonal unemployment
II. Disguised unemployment
III. Chronic unemployment
Which is the correct answer?
I and II only
II and III only
I and III only
I, III and III
7958.Fill up the blanks :
National population policy adopted in 2000 with a view to encourage-------- and aim at stabilizing the population by -----------
National population policy adopted in 2000 with a view to encourage-------- and aim at stabilizing the population by -----------
Two child norm, 2020
One child norm, 2030
Two children norm, 2046
One child norm, 2050
7960.Match the following and select the correct answer
(a) Tax revenue l. Provident funds
(b) Capital receipts 2. Taxes on income and expenditure
(c) Non-plan expenditure 3. Sales tax
(d) Value added tax 4.Interest payments
(a) (b) (c) (d)
(a) Tax revenue l. Provident funds
(b) Capital receipts 2. Taxes on income and expenditure
(c) Non-plan expenditure 3. Sales tax
(d) Value added tax 4.Interest payments
(a) (b) (c) (d)
4 3 2 1
1 3 4 2
2 1 4 3
2 3 4 1