Question
Find the wrong number, in the given number series.
1, 8, 27, 65, 125, 216Solution
ATQ,
These look like cubes of numbers:
1 = 1³
8 = 2³
27 = 3³
65 — not 4³ (which is 64)
125 = 5³
216 = 6³
So the correct term after 27 should be:
4³ = 64, not 65
Wrong number: 65
Correct number: 64
‘A’ and ‘B’ can do a piece of work in 25 days and 30 days, respectively. If they started the work together and worked on it for 5 days, then fin...
Out of 10 men, 3 are wearing red caps, 4 are wearing green caps, and the remaining men are wearing orange caps. They are to be seated in a linear row. I...
In what ratio rice at 47 Rs/kg should be mixed with the rice at 28 Rs/kg so that selling mixture at Rs 45 per kg gives the profit of 25% if the quantity...
33.98 X 17.99 - (7.99 X 8.99) ÷ 1.99 - 27.99 X 4.01 = ? X 3.99
If '176x95' is a six-digit number that is divisible by 3, then find the maximum value of '5x'.
In a Mixture, the ratio of Milk and Water is 7: 5. If 12 litre mixture drawn off and replace by 8 litre water then the ratio of Milk and Water become 1...
A shopkeeper offers successive discounts of 20% and 10% on a product. If the marked price of the product is ₹1000, what is the selling price?
You are provided with three sequences below. Determine the values of P, Q, and R, and then identify the relationship among them.<...
The three digits of a three-digit number are in the ratio 3:2:5. If 111 is added to this number, what is the sum of the digits of the resulting number?
In what ratio rice at 52 Rs/kg should be mixed with the rice at 36 Rs/kg so that selling mixture at Rs 50 per kg gives the profit of 25% if the quantity...