Straight Lines Test 39

Result

Straight Lines Test 39

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Weekly Quiz Competition

Question 1
1 / -0

Find the next term
$$32,49,83,151,287,559,?$$

A
$$1118$$

B
$$979$$

C
$$1103$$

D
$$1120$$

Solution
Question 2
1 / -0

The area of the triangle vertices $$(1,0),(7,0)$$ and $$(4,4)$$ is ___ square units.

A
$$8$$

B
$$10$$

C
$$12$$

D
$$14$$

Solution
Question 3
1 / -0

13, 16, 22, 33, 51 ?

A
89

B
78

C
102

D
69

E
none of these

Solution

REF.Image
$$ 13,16,22,33,51, ?$$
Question 4
1 / -0

$$4,6,12,30,90,315,?$$

A
$$945$$

B
$$1102$$

C
$$1260$$

D
$$1417.5$$

E
$$None\ of\ these$$

Solution

$$=315\times 4$$
$$=1260.$$
Hence, the answer is $$1260.$$
Question 5
1 / -0

Find next term
$$462,552,650,756,870,992,?$$

A
$$1040$$

B
$$1122$$

C
$$1132$$

D
$$105$$

Solution
Question 6
1 / -0

Find the next term
$$1050,420,168,67.2,26.88,10.752,?$$

A
$$4.3008$$

B
$$6.5038$$

C
$$4.4015$$

D
$$5.6002$$

E
$$None\ of\ these$$

Solution
Question 7
1 / -0

find: $$3, 6, 21, 28, 55, 66, ?, 120$$

A
$$103$$

B
$$104$$

C
$$108$$

D
$$106$$

E
$$105$$

Solution

$$3\times 1=3$$
$$3\times 2=14$$
$$7\times 3=21$$
$$7\times 4=28$$
$$11\times 5=55$$
$$11\times 6=66$$

So, the next number is 15.
$$\Rightarrow 15\times 7=105$$
$$15\times 8=120$$

The series:- $$3,6,21,28,55,66,105,120$$
Question 8
1 / -0

Find the next term
$$210,209,205,196,180,?$$

A
$$138$$

B
$$77$$

C
$$155$$

D
$$327$$

Solution

$$T_1=210$$ $$,T_2=209,$$ $$T_3=205,$$ $$T_4=196,$$ $$T_5=180,$$ $$T_6=?$$

$$T_1-T_2=1^2\\$$
$$T_2-T_3=2^2\\$$
$$T_3-T_4=3^2\\$$
$$T_4-T_5=4^2\\$$
$$T_5-T_6=5^2\\$$
$$\implies T_6=T_5 - 5^2=180-25=155$$
Question 9
1 / -0

$$120, 15, 105, 17.5, 87.5, ?$$

A
$$18.5$$

B
$$19.5$$

C
$$21.875$$

D
$$17.5$$

E
$$90$$

Solution

$$120,15,105,17.5,87.5,.....$$
$$\dfrac{120}{8}=15$$
$$15\times 7=105$$
$$\dfrac{105}{6}=17.5$$
$$17.5\times 5=87.5$$
$$\dfrac{87.5}{4}=21.875$$
ANSWER IS C
Question 10
1 / -0

Find the next term
$$7,20,46,98,202,?$$

A
$$420$$

B
$$410$$

C
$$310$$

D
$$320$$

Solution