Question Detail

3034 - (1002 / 20.04) = ?

2984
2983
2982
2981

Answer: Option A

1. If p - q = 3 and
\begin{aligned} p^2 + q^2 = 29 \end{aligned}, find the value of pq.

Answer: Option D

Explanation:

We know
\begin{aligned} 2ab = (a^2 + b^2) - (a - b)^2 \end{aligned}

\begin{aligned} 2pq = 29 - 9 = 20 \end{aligned}

\begin{aligned} =>pq = 10 \end{aligned}

2. Simplify
(31/10) * (3/10) + (7/5) / 20

Answer: Option B

Explanation:

= (31/10) * (3/10) + (7/5) / 20
= (3.1) * (.3) + (1.4) / 20
= 0.93 + 0.07
= 1

3. \begin{aligned} 3034 -(1002 \div 20.04) = ? \end{aligned}

1964
1984
2964
2984

Answer: Option D

Explanation:

\begin{aligned}
= 3034 -( \frac{1002}{2004} \times 100)
\end{aligned}
\begin{aligned}
= 3034 - 50 = 2984
\end{aligned}

4. 18800 / 470 / 20

Answer: Option B

Explanation:

18800 / 470 / 20 = (18800 / 470) / 20 = 40 / 20 = 2

5. How many pieces of 0.85 meteres can be cut from a rod 42.5 meteres long

Answer: Option C

Explanation:

We need so simple divide 42.5/0.85,
=(4250/85) = 50

Question Detail

3034 - (1002 / 20.04) = ?

1. If p - q = 3 and \begin{aligned} p^2 + q^2 = 29 \end{aligned}, find the value of pq.

2. Simplify (31/10) * (3/10) + (7/5) / 20

3. \begin{aligned} 3034 -(1002 \div 20.04) = ? \end{aligned}

4. 18800 / 470 / 20

5. How many pieces of 0.85 meteres can be cut from a rod 42.5 meteres long

1. If p - q = 3 and
\begin{aligned} p^2 + q^2 = 29 \end{aligned}, find the value of pq.

2. Simplify
(31/10) * (3/10) + (7/5) / 20