8122.Three numbers are in the ratio 1 : 2 : 3. Their highest common factor is 12. Find the numbers
12, 24, 36
24, 48, 72
12, 24, 48
48, 60, 72
8124.If the two numbers are in the ratio of 2:3 and the product of their highest common factor and least common multiple is 150, then find the sum of the numbers.
5
10
20
25
8126.Alex invested an amount of Rs. 8,000 in a fixed deposit scheme for 2 years at compound interest rate 5% per annum. How much amount will Alex get on maturity of the fixed deposit?
Rs. 8,600
Rs. 8,620
Rs. 8,820
Rs. 8,840
8128.The difference between the compound interest and simple interest on a certain sum at 8% per annum for 2 years is Rs. 240. Find the sum.
Rs. 35,000
Rs. 35,700
Rs. 37,500
Rs. 40,000
8130.If the rate of simple interest is 12% per annum, then find the amount that would get interest of Rs. 6,000 per annum.
Rs. 82,000
Rs. 50,000
Rs. 72,000
Rs. 45,000
8132.Three solid metal cubes, whose edges are 6 cm, 8 cm and 10 cm are melted and a new cube is made. Find the length of edge of the new cube.
12 cm
24 cm
20 cm
48 cm
8136.A can do a work in 10 days and B can do the same work in 15 days. They earn Rs. 1,500 together. How will they share this amount?
Rs. 850 and Rs. 650
Rs. 900 and Rs. 600
Rs. 950 and Rs. 550
Rs. 1,000 and Rs. 500
8138.If 6 men and 8 boys can do a piece of work in 10 days while 26 men and 48 boys can do the same work in 2 days, then what is the time taken by 15 men and 20 boys to complete the same type of work?
4 days
5 days
6 days
7 days
8140.A plot of land is in the form of a quadrilateral where one of its diagonals is 100 m long. If two vertices on either side of this diagonals are 50 m away from the diagonal. Find the area of the plot of land
5000 $m^{2}$
1000 $m^{2}$
10000 $m^{2}$
500 $m^{2}$
8144.Read the following statements :
1. Either A and B are of the same age or A is older than B
2. Either C and D are of the same age or D is older than C
3. B is older than C
Which one of the conclusions can be drawn from the above statements?
1. Either A and B are of the same age or A is older than B
2. Either C and D are of the same age or D is older than C
3. B is older than C
Which one of the conclusions can be drawn from the above statements?
A is older than C
D is older than C
A is older than B
B and D are of the same age
8146.The minute hand of a circular clock is 14 cm long and that of hour hand is 7 cm. Find how far does the tip of the minute and hour hand move in 30 minutes?
88 cm, 3.66 cm
22 cm, 0.915 cm
44 cm, 1.83 cm
1.83 cm, 88 cm
8148.A heap of paddy is in the form of a right circular cone whose diameter is 4.8 m and height 1.8 m. If the heap is to be covered exactly by a canvas to protect it from rain, find the area of the canvas required.
22.6 $m^{2}$
27.2 $m^{2}$
13.6 $m^{2}$
11.3 $m^{2}$
8152.Arrange the following in the order of increasing solubility in water
(i)$NaHCO_{3}$ (ii) $KHCO_{3}$ (iii) $Mg{(HCO_{3})}_2$ (iv) $ca{(HCO_{3})}_2$
(i)$NaHCO_{3}$ (ii) $KHCO_{3}$ (iii) $Mg{(HCO_{3})}_2$ (iv) $ca{(HCO_{3})}_2$
(iv) < (iii) < (ii) < (i)
(i) < (ii) < (iii) < (iv)
(ii) < (iii) < (i) < (iv)
(iii) < (i) < (iv) < (ii)
8154.Match the following :
Actinide element Atomic number
(a) Plutonium 1. 102
(b) Curium 2. 1OO
(c) Fermium 3. 96
(d) Nobelium 4. 94
(a) (b) (c) (d)
Actinide element Atomic number
(a) Plutonium 1. 102
(b) Curium 2. 1OO
(c) Fermium 3. 96
(d) Nobelium 4. 94
(a) (b) (c) (d)
1 2 3 4
3 4 1 2
3 4 2 1
4 3 2 1
8156.Match the Number of electrons transferred (a) when one mole of $KMnO_4$ is reduced to (b)
(a) 1, 3, 4, 5
(b) $Mn_{2}O_3$, $MnO_2$, $Mn{O_4^2}^-$, ${Mn^2}^+$
(a) 1, 3, 4, 5
(b) $Mn_{2}O_3$, $MnO_2$, $Mn{O_4^2}^-$, ${Mn^2}^+$
1 — $Mn{O_4^2}^-$, 3 —$MnO_2$, 4 — $Mn_{2}O_3$, 5 — ${Mn^2}^+$
1 — ${Mn^2}^+$, 3 —$Mn_{2}O_3$, 4 — $MnO_2$, 5 —$Mn{O_4^2}^-$
1 — $MnO_2$, 3 – $Mn{O_4^2}^-$, 4 — ${Mn^2}^+$, 5 — $Mn_{2}O_3$,
1 — $Mn_{2}O_3$, 3 — ${Mn^2}^+$, 4 — $Mn{O_4^2}^-$, 5 — $MnO_2$
8158.An example of commonly used herbicide is
p, p - dichlorodiphenyl trichloro ethane
2,4 dichloro phenoxy acetic acid
Benzene hexa chloride
Naphthalene
8160.Match the following:
I II III
(1) Thiamine (a) Cheilosis (i) Pellagra
(2) Niacin (b) Polyneuritis (ii) Glossitis
(3) Riboflavin (c) Nicotinamide (iii) Beri beri
(4) Biotin (d) Antipernic (iv) Hyperestheria
(5) Cyanacobalamine (e) Coenzyme R (v) Pernicious anaemia
I II III
(1) Thiamine (a) Cheilosis (i) Pellagra
(2) Niacin (b) Polyneuritis (ii) Glossitis
(3) Riboflavin (c) Nicotinamide (iii) Beri beri
(4) Biotin (d) Antipernic (iv) Hyperestheria
(5) Cyanacobalamine (e) Coenzyme R (v) Pernicious anaemia
(1) — (a) — (v) (2) — (b) - (iii) (3) — (c) - (i) (4) - (d) — (ii) (5) — (e) — (iv)
(1) — (b) - (iii) (2) - (c) - (i) (3) — (a) — (ii) (4) - (e) — (iv) (5) — (d) - (v)
(1) — (d) — (ii) (2) — (a) — (v) (3) — (b) — (iv) (4) - (c) — (iii) (5) — (e) — (i)
(1) — (c) — (iv) (2) - (e) – (ii) (3) — (d) — (v) (4) — (a) — (i) (5) — (b) — (iii)