Question
Which of the following technological inventions came
first?Solution
A telescope is an optical instrument that aids in the observation of remote objects by collecting electromagnetic radiation (such as visible light). The first known practical telescopes were invented in the Netherlands at the beginning of the 17th century, by using glass lenses. They found use in both terrestrial applications and astronomy.
βAβ, βBβ and βCβ started a business by investing Rs. 3,000, Rs. 3,600 and Rs. 2,400, respectively. After 6 months, βBβ decreased his inv...
Amit and Bhanu put Rs. 14,400 and Rs. 19,200, respectively, into a startup. After 4 months, Chinu joined them with an investment of Rs. 10,800. If by th...
Palash invest twice the sum invested by Vicky and withdraws half of the sum after 4 months and again withdraws half of the remaining sum after 2 months....
A, B and C invest in a partnership in the ratio 8:7:10 and investment of A is Rs.200 less than investment of C. Partner B invests for 1/5th and A and C ...
A, B and C started a online education website by investing Rs.40,000, Rs.45,000 and Rs.50,000 respectively. Find the share of Aβs, out of an annual pr...
Ashu and Sunil together start a business with investment of Rs. 1800 and Rs. βx + 1000β, respectively. If the profit earned after 5 years is Rs. 640...
Two friends, E and F, started a business by investing RS 1,20,000 and RS 1,80,000, respectively. They agreed to distribute their earnings in the same ra...
P and Q started a business by investing Rs.5600 and Rs.4000 respectively. After 6 months, Q increased his investment by a certain percentage such that a...
A and B started a business by investing sum in the ratio 5:7 respectively for 6 and 10 months respectively. If annual profit earned by B is Rs.1400, the...
- βXβ and βYβ started a business by investing Rs. 2,500 and Rs. 4,000 respectively. After 12 months, βXβ increased his investment by 40% while οΏ½...
Relevant for Exams:
