Question
Find the greatest 3-digit number which is exactly
divisible by 7, 8 and 9.Solution
First find LCM of 7, 8 and 9. 7 = 7 8 = 2Β³ 9 = 3Β² LCM = 2Β³ Γ 3Β² Γ 7 = 8 Γ 9 Γ 7 = 504 Now find the greatest 3-digit multiple of 504: 504 Γ 1 = 504 504 Γ 2 = 1008 (> 999, not allowed as 3-digit) So, required number = 504
Amit and Riya started a business by investing in the ratio 6:4 respectively. After 8 months, Karan joined the business, investing an amount equal to the...
A starts a business with Rs. 50,000. B invests Rs. 40,000 at the same time. After 4 months, B increases his investment by Rs. 10,000. After 6 months fro...
A, B and C enter into a partnership, A invest 3X + 1000, B invest X + 3000 and C invest X + 1500 for one year if B share is 20000 from total profit of 4...
βXβ invested Rs. 28000 in a business. βYβ joined after βxβ months with an investment of Rs. 12000 less than βXβ. If the ratio of the pro...
"Arun and Bharat started a business together with a combined investment of Rs. 3000. After the first year, Arun withdrew Rs. 400 ...
‘A’ and ‘B’ started a business by investing certain sum in the ratio 2:3, respectively for 6 years. If 30% of the total profit i...
Three individuals, L, M, and N, invest Rs 28,000, Rs 35,000, and Rs 42,000 respectively in a business. At the end of the year, they earn a profit of Rs ...
A, B and C invest in a partnership in the ratio 6:3:8 and investment of A is Rs.200 less than investment of C. Partner B invests for 1/5th and A and C i...
Ravi and Mohan invested Rs. 32000 and Rs. 20000 respectively in a business. After 6 months, Sohan joined them with an investment of Rs. 36000. At the en...
βAβ and βBβ started a business by investing Rs. βyβ and Rs. βy + 300β, respectively. If 10 months later the ratio of profit shares of οΏ½...
Relevant for Exams:
