Question
When a number is added to its multiple of 5 and its
square, the sum of these three numbers is 91. Find the number.Solution
Let the number is ‘x’ Given: A number is added to its multiple of 5 and its square, the sum of these three numbers is 91. => x + 5x + x = 91 => x + 6x - 91 = 0 => x + 13x – 7x - 91 = 0 => x(x + 13) – 7(x + 13) = 0 => (x + 13)(x - 7) = 0 So, x + 13 = 0 and x - 7 = 0 x = - 13 and x = 7 There are two values of x = -13, 7 But we take positive value. Hence, “7” is the correct answer.
? = (597.98 ÷ (6.97 2.01 – 3.1)) × 12.9
1153, 1206, ?, 1326, 1393, 1464
What is the least number of square tiles required to pave the floor of a room 11 m 47 cm long and 6 m 82 cm broad?
Which of the following statements is true about LPP?
What is the value of 8 √ 4 × 16 √ 4?
If logₓ(81) = 4/3, find x.
Calculate the percentage contribution of the South branch's total revenue to the company's total revenue over the three years (2021-2023).
115, 138, 163, 190, 219, ?
A man drives at a steady speed of 75 km/h for 4 hours, followed by another stretch of 3 hours at a consistent speed of 40 km/h. What is his average spee...
A company’s quarterly sales (in lakh units) are:
Q1: 18, Q2: 24, Q3: 21, Q4: 27
Find the percentage increase from...
Relevant for Exams:
