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The minus sign of lattice energy indicates that the energy is released from ions in the gaseous state, during the formation of solid ionic compound. An ionic bond is formed through the steps described above. Now, if the total energy released is more than that which is absorbed, then the formation o..

Find the number of ways Jim can choose a green or a red colored shirt that comes in four sizes, small(s), medium (m), large(l), and extra large(xl). => 9 or 7 or 6 or 8..

The circle graph shows the fractions of different types of flats sold in an apartment block. What fraction of large and mid-size flats were sold? => 3 7 or 2 5 or 3 5 or 2 7..

A store sells white (W) and red (R) colored shirts that come in four different sizes: Small (S), Medium (M), Large (L), and Extra Large (XL). Use a tree diagram to find the number of possible ways in which Donald can choose his shirt. => 8 or 4 or 6 or 2..

A balloon-seller has balloons in 3 different sizes(small, medium and large) and 4 different colors(violet, green, yellow and blue). In how many possible ways can you choose a balloon? => 12 or 4 or 7 or 3..

A kite-seller sells 3 sizes of kites(small, medium and large) in 5 different colors(red, blue, yellow, green and orange). How many choices of kites are available? => 5 or 8 or 20 or 15..

A balloon-seller has balloons in 3 different sizes(small, medium and large) and 4 different colors(violet, green, yellow and blue). In how many possible ways can you choose a balloon? => 7 or 4 or 3 or 12..

A fast-food restaurant owner wishes to estimate the average number of people visiting the restaurant. He wants to be 90% confident that the estimate is within 5 percentage of the true proportion. How large should the sample size be? => 273 or 545 or 33 or 1,089..

A store sells sports T-shirts in two colors: red and green. They are available in 3 different sizes: small, medium, and large. Choose the tree diagram that shows all the possible outcomes of T-shirts. => Tree diagram 1 or Tree diagram 2 or Tree diagram 3 or Tree diagram 4..

At a fair, balloons of 3 different sizes (small, medium, and large) and 3 different colors (green, yellow, and purple) are sold. List all the possible choices that Ashley has to choose from. => (Y, S), (Y, M), (P, S), (P, M), (P, L) or (Y, S), (Y, M), (Y, L), (P, S), (P, M) or (..