• Home
  • Live Classes
    • NEET
      • Class 12
    • MHTCET
      • Class 12
    • MH Board
      • Class 12
      • Class 11
      • Class 10
    • UP Board
      • Class 12 – Eng Medium
      • Class 12 – Hindi Medium
      • Class 11 – Eng Medium
        • Maths
        • Physics
        • Biology
      • Class 11 – Hindi Medium
        • Chemistry
        • Biology
        • Physics
        • Maths
      • Class 10 Eng Medium
      • Class 10 Hindi Medium
  • Study Material
    • NCERT
      • NCERT Class 10
        • Maths
        • Science
      • NCERT Class 11
        • Maths
        • Physics
        • Chemistry
        • Biology
      • NCERT Class 12
        • Maths
        • Physics
        • Chemistry
        • Biology
      • NCERT Exemplar Class 10
        • Maths
        • Science
      • NCERT Exemplar Class 11
        • Maths
        • Physics
        • Chemistry
        • Biology
      • NCERT Exemplar Class 12
        • Maths
        • Physics
        • Chemistry
        • Biology
      • RD Sharma Class 10
      • RD Sharma Class 11
      • RD Sharma Class 12
      • RS Aggarwal Class 10
      • RS Aggarwal Class 11
      • RS Aggarwal Class 12
      • Lakhmir Singh Class 10 Physics
      • Lakhmir Singh Class 10 Chemistry
    • ICSE
      • Selina Class 10
        • Maths
        • Chemistry
        • Biology
        • Physics
      • ML Aggarwal Class 10
      • Frank Class 10
    • NEET
    • MHTCET
Login/Sign Up
Home » How many 2 – digit numbers are divisible by 7?
How many 2 – digit numbers are divisible by 7?
RS aggarwal class 11 Maths Arithmetic progressions
How many 2 – digit numbers are divisible by 7?

The first 2 digit number divisible by 7 is 14, and the last 2 digit number
divisible by 7 is 98, so it forms AP with common difference 7
14,…,98
98 = 14 + (n – 1) × 7
n = 22

i

More Material

Why do soaps not work in hard water?

If the sums of n terms of two APs are in ratio (2n + 3) : (3n + 2), find the ratio of their 10th terms.

The sum of n terms of an AP is 1/2 an^2 + bn. Find the common difference.

Write the sum of first n odd natural numbers.

Write the sum of first n even natural numbers.

In an AP, the pth term is q and (p + q)th term is 0. Show that its qth term is p.

The first and last terms of an AP are 1 and 11 respectively. If the sum of its terms is 36, find the number of terms.

What is the 10th common term between the APs 3, 7, 11, 15, 19, … and 1, 6, 11, 16, …?

If 7th and 13th terms of an AP be 34 and 64 respectively then find its 18thterm.

Find the 8th term from the end of the AP 7, 9, 11, …., 201.

How many terms are there in the AP 13, 16, 19, …., 43?

The 9th term of an AP is 0. Prove that its 29th term is double the 19th term.

← Previous Next →

Sign up now and study all subjects for free

Sign Up For Free

Class

CBSE
ICSE

Syllabus

CBSE Maths 12
ICSE Maths 12
ICSE Physics 11
MH 12 Chemistry
ICSE 10 Physics
ICSE Biology 12
ICSE Maths 10
CBSE Chem 11
CBSE Maths 10
CBSE Maths 11
All Syllabus

Question Papers

ICSE Biology 10
ICSE Chem 9
UP Bio 11
CBSE Physics 12
UP Maths 12 
ICSE Maths 10 ICSE Maths 11
CBSE Maths 11
CBSE Physics 11
CBSE Maths 10
All PYQ

Social Media

Apps

Copyright © 2021 Noon | All Rights Reserved.