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We know sin(3θ) = cos(2θ). Using the identity cos(2θ) = sin(90° - 2θ) 3θ = 90° - 2θ Solving 3θ = 90° - 2θ gives 5θ = 90°, so θ = 18°. Answer: a
The work can be completed by 'P' boys in 16 days, and by (P + 1) girls in 20 days. Additionally, if 8 boys and 12 girls w...
Working alone, ‘X’ and ‘Y’ can complete a work in 16 days and 10 days, respectively. They started working together but af...
'A' and 'B' can complete a piece of work in 10 days, 'B' and 'C' can complete the work in 16 days, and 'A' and 'C' can complete the work in 20 days. Fin...
5 girls can do a piece of work in 9 days, 4 boys can do the same piece of work in 8 days, 6 men do the same piece of work in 2 days and 4 women can do t...
A’ and ‘B’ together can complete a work in 25 days while ‘A’ takes 30 days to complete the same work alone. If ‘C’ is 20% more efficient t...
P can complete a job in 30 days. Q alone can complete the same job in 20 days. P works for 18 days and then the remaining job is completed by Q. How man...
A and B together can do a piece of work in 15 days which B and C together can do in 20 days. After A has been working at it for 3 days and then by B for...
X men can complete the piece of work in 35 days and (X + 34) men can complete the same work in 14 days less than that of days taken by X men. Find the v...
Lata can do 1/3rd of a work in 4 days and Asha can do 1/6th of the same work in 3 days. If both work together then how many days...
A company hires workers A, B, and C to finish a project. A can complete the project in 30 days, B can do it in 24 days, and C can complete it in 20 days...
