AP EAMCET · Maths · Permutation Combination
If a person has coins of different denominations, the number of different sums can be formed is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
Given that person has 3 coins of different denominations, Selecting 1 coin out of 3 coins gives C13 ways. Selecting 2 coin out of 3 coins gives C23 ways. Selecting 3 coin out of 3 coins gives C33 ways. Total number of different sums of money that can person form is…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Maths
- The variance of the following data is
\(\begin{array}{c|c|c|c|c|c|c|c|c|c|c}
\hline \boldsymbol{x}_{\boldsymbol{i}} & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 \\
\hline \boldsymbol{f}_{\boldsymbol{i}} & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 \\
\hline
\end{array}\)AP EAMCET 2019 Easy - \(E_1\) and \(E_2\) are two independent events of a random experiment such that \(P\left(E_1\right)=\frac{1}{2}\) and \(P\left(E_1 \cup E_2\right)=\frac{2}{3}\).
Then match the items of List-I with the items of List-II.
The correct match isAP EAMCET 2024 Easy - \(\int_{\frac{\pi}{6}}^{\frac{\pi}{3}} \frac{1}{1+\sqrt{\cot x}} d x=\)AP EAMCET 2023 Medium
- A point is moving on the curve \(y=x^3-3 x^2+2 x-1\) and the \(y\)-coordinate of the point is increasing at the rate of 6 units per second. When the point is at \((2,-1)\), the rate of change of \(x\)-coordinate of the point isAP EAMCET 2024 Easy
- Let \(\vec{a}=\hat{i}+\hat{j}+\hat{k}, \vec{b}=\hat{i}+\hat{j}-2 \hat{k}, \vec{c}=\hat{i}-2 \hat{j}+3 \hat{k}\) and \(\overrightarrow{\mathrm{d}}=-4 \hat{\mathrm{i}}+5 \hat{\mathrm{j}}-3 \hat{\mathrm{k}}, \overrightarrow{\mathrm{d}}=x(\overrightarrow{\mathrm{b}} \times \overrightarrow{\mathrm{c}})-\frac{7}{9}(\overrightarrow{\mathrm{c}} \times \overrightarrow{\mathrm{a}})+\mathrm{z}(\overrightarrow{\mathrm{a}} \times \overrightarrow{\mathrm{b}})\), then \(x=\)AP EAMCET 2023 Easy
- \({ }^{15} P_8=A+8 \cdot{ }^{14} P_7 \Rightarrow A=\)AP EAMCET 2011 Medium
More PYQs from AP EAMCET
- Which of the following reagents can form a hydrazone with alkanone?AP EAMCET 2004 Hard
- If the median of a \(\triangle A B C\) through \(A\) is perpendicular to \(A C\), then \(\frac{\tan A}{\tan C}=\)AP EAMCET 2018 Easy
- Sulphur trioxide is dissolved in heavy water to form a compound \(X\). The hybridisation state of sulphur in \(X\) is :AP EAMCET 2003 Easy
- The magnetic field at the centre \(\mathrm{C}\) of the arrangement shown in figure is
AP EAMCET 2019 Easy - The focal length of an equi-convex lens is greater than the radius of curvature of any of the surfaces. Then the refractive index of the material of the lens isAP EAMCET 2005 Medium
- If \(f(x)=x^{\mathrm{x}}\), then the interval in which \(f(x)\) decreases isAP EAMCET 2024 Medium