Advertisements
Advertisements
प्रश्न
Thrice a number decreased by 5 exceeds twice the number by 1. Find the number.
Advertisements
उत्तर
Let the number be x.
Then, thrice of this number = 3x and twice of this number = 2x.
If we decrease thrice of x by 5, we get (3x – 5)
According to the question,
(3x – 5) – (2x) = 1
⇒ 3x – 5 – 2x = 1
⇒ x – 5 = 1
⇒ x = 1 + 5 ...[Transposing (–5) to RHS]
⇒ x = 6
Hence, the required number is 6.
APPEARS IN
संबंधित प्रश्न
Set up equation and solve them to find the unknown number in the following case:
When I subtracted 11 from twice a number, the result was 15.
Set up equation and solve them to find the unknown number in the following case:
Anwar thinks of a number. If he takes away 7 from `5/2` of the number, the result is 23.
Sachin scored twice as many runs as Rahul. Together, their runs fell two short of a double century. How many runs did each one score?
In a test Abha gets twice the marks as that of Palak. Two times Abha's marks and three times Palak's marks make 280.
The equation formed is ______.
In a bag there are 5 and 2 rupee coins. If they are equal in number and their worth is ₹ 70, then
The worth of x coins of ₹ 2 each ______.
In a Mathematics quiz, 30 prizes consisting of 1st and 2nd prizes only are to be given. 1st and 2nd prizes are worth ₹ 2000 and ₹ 1000, respectively. If the total prize money is ₹ 52,000 then show that:
The equation formed is ______.
If 10 is subtracted from half of a number, the result is 4.
Each of the 2 equal sides of an isosceles triangle is twice as large as the third side. If the perimeter of the triangle is 30 cm, find the length of each side of the triangle.
A girl is 28 years younger than her father. The sum of their ages is 50 years. Find the ages of the girl and her father.
Radha got ₹ 17,480 as her monthly salary and over-time. Her salary exceeds the over-time by ₹ 10,000. What is her monthly salary?
