group1
In a two digit number. The units digit is thrice the tens digit. If 36 is added to the number, the digits interchange their place. Find the number.
26.
If 2 is added to the numerator and denominator it becomes 9/10 and if 3 is subtracted from the numerator and denominator it become 4/5. Find the fractions.
7/8.
Two pens and one eraser cost Rs. 35 and 3 pencil and four erasers cost Rs. 65. Find the cost of pencil and eraser separately.
the cost of 1 pen is Rs. 15 and the cost of 1 eraser is Rs. 5.
Five years ago, the age of Niraj was seven times that of his son Girish. Five years from, his age will be three times that of his son. What is the ratio of their ages today?
each pencil costs ₹ 3, and each eraser costs ₹ 1.
A boat is travelling in a river in which the water is flowing with a certain speed. In 10 hours, the boat can go 30 km upstream and then 52 km downstream. In 15 hours, it can go 50 km upstream and 65 km downstream. Determine the speed of the boat in still water, and the speed of the flowing water
the speed of the boat in still water is 9 km/hr, while the speed of the flowing water is 4 km/hr.
The 6th term of an AP is 6 and the 16th term is 14. What is the 27th term?
114/5
The sum of the first six terms of an AP is 48 and the common difference is 2. What is the 4th term?
9
The sum of the fourth and twelfth term of an arithmetic progression is 20. What is the sum of the first 15 terms of the arithmetic progression?
150
Which term of the A.P. 3,8,13 …is 78?
16
Find the 9th term of the arithmetic progression 1, 3.5, 6, 8.5,
21
the missing terms in AP: __, 13, __, 3 are:
18,8
sum of three numbers in an A.P. is 9 and their product is 24, then numbers are
2,3,4
Find the sum of first 30 multiples of 4.
1860
which term of AP 15,10,5,0 is -40
12
Raman started working for an annual salary of rupees 5000 and received an annual increment of rupees 200 per year after how many years his salary will be rupees 8000
16