Please wait...
/
-
What should come in place of question mark (?) in the following number series?
4, ?, 4, 9, 32, 155
Verify mobile number to view the solution
4 × 1 – 1 = 3
3 × 2 – 2 = 4
4 × 3 – 3 = 9
9 × 4 – 4 = 32
32 × 5 – 5 = 155
Hence, 3 will replace the question mark.
16, 14, 25, 71, ?, 1389
16 × 1 – 2 = 14
14 × 2 – 3 = 25
25 × 3 – 4 = 71
71 × 4 – 5 = 279
279 × 5 – 6 = 1389
Hence, 279 will replace the question mark.
12, 43, 74, 108, 148, ?
Hence, 197 will replace the question mark.
?, 212, 112, 64, 42, 33
416 ÷ 2 + 4 = 212
212 ÷ 2 + 6 = 112
112 ÷ 2 + 8 = 64
64 ÷ 2 + 10 = 42
42 ÷ 2 + 12 = 33
Hence, 416 will replace the question mark.
2, 24, 14, 122, 34, ?
22 – 2 = 4 – 2 = 2
33 – 3 = 27 – 3 = 24
42 – 2 = 16 – 2 = 14
53 – 3 = 125 – 3 = 122
62 – 2 = 36 – 2 = 34
73 – 3 = 343 – 3 = 340
Hence, 340 will replace the question mark.
Two equations are given in each of the questions given below. Find the value of x and y by solving equations and answer as:
I. x2 = 169
II. y2 – 24y + 144 = 0
∴ Relation can't be established
I. 3x2 – 13x + 12 = 0
II. 3y2 – 13y + 14 = 0
I. x = √144
II. 3y2 + 10y – 13 = 0
In the following question, two statements numbered I and II are given, on solving them, we get quantities I and II respectively. Compare both the quantities and choose the correct option.
Quantity I- A man sells a plot of land at 6% profit. If he had sold it at 10% profit, he would have received
₹200 more. What is the selling price of the land?
Quantity II- The cost price of an article is
₹3,90 and sold at a profit of 3.12%, how much would be its approximate selling price?
From Quantity I-
According to question;
6% + 200 = 10%
⇒ Cost price = 100% = 50 × 100 = 5000
∴ Selling Price = 5000 + 5000 × 6 / 100
= Rs. 5300
From Quantity II-
S.P. = 390 + 3.12% of 390 = ₹402.168.
Quantity I - Anu and Bharti invested Rs.20,000 and Rs. 24,000 respectively in a business. Bharti left the business with his money after 8 months. At the end of the first year they earned a profit of Rs.1,620. What is the share of Anu in the profit?
Quantity II - A and B started a business by investing ₹28000 & ₹36000. After four months, B withdraw ₹3000 & A invested ₹8000 more. At the end of the year, the total profit is ₹ 2020. What is the difference between the profit earned by A and B?
Correct (-)
Wrong (-)
Skipped (-)